221 lines
31 KiB
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221 lines
31 KiB
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<document ID-DOI="10.1515/mammalia-2016-0162" ID-GBIF-Dataset="30e99225-91c6-4d08-9613-3ba747a8623e" ID-ISSN="1864-1547" ID-Zenodo-Dep="7837626" IM.bibliography_approvedBy="tatiana" IM.illustrations_approvedBy="tatiana" IM.tables_approvedBy="tatiana" IM.taxonomicNames_approvedBy="tatiana" IM.treatments_approvedBy="tatiana" checkinTime="1681741346445" checkinUser="felipe" docAuthor="Caraballo, Diego A. & Rossi, María Susana" docDate="2018" docId="03BC87CBC063FFB9229AEA867648FC9E" docLanguage="en" docName="Mammalia.82.1.35-47.pdf" docOrigin="Mammalia (Warsaw, Poland) 82 (1)" docSource="http://dx.doi.org/10.1515/mammalia-2016-0162" docStyle="DocumentStyle:6C173CCC1D5EC0136B755626151D98B6.1:Mammalia.2015-.journal_article" docStyleId="6C173CCC1D5EC0136B755626151D98B6" docStyleName="Mammalia.2015-.journal_article" docStyleVersion="1" docTitle="Ctenomys perrensi Thomas 1896" docType="treatment" docVersion="6" lastPageNumber="42" masterDocId="FF85FFB3C065FFBE2212EE6A7469FFBF" masterDocTitle="Integrative lineage delimitation in rodents of the Ctenomys Corrientes group" masterLastPageNumber="47" masterPageNumber="35" pageNumber="41" updateTime="1682601658727" updateUser="tatiana">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Integrative lineage delimitation in rodents of the Ctenomys Corrientes group</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Caraballo, Diego A.</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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<mods:namePart>Rossi, María Susana</mods:namePart>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:title>Mammalia</mods:title>
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<mods:part>
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<mods:date>2018</mods:date>
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<mods:detail type="series">
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<mods:title>Warsaw, Poland</mods:title>
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</mods:detail>
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<mods:detail type="pubDate">
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<mods:number>2017-02-25</mods:number>
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</mods:detail>
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<mods:detail type="volume">
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<mods:number>82</mods:number>
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<mods:detail type="issue">
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<mods:number>1</mods:number>
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<mods:extent unit="page">
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<mods:start>35</mods:start>
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<mods:end>47</mods:end>
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</mods:extent>
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<mods:location>
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<mods:url>http://dx.doi.org/10.1515/mammalia-2016-0162</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">10.1515/mammalia-2016-0162</mods:identifier>
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<mods:identifier type="GBIF-Dataset">30e99225-91c6-4d08-9613-3ba747a8623e</mods:identifier>
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<mods:identifier type="ISSN">1864-1547</mods:identifier>
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<mods:identifier type="Zenodo-Dep">7837626</mods:identifier>
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</mods:mods>
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<treatment ID-DOI="http://doi.org/10.5281/zenodo.7859435" ID-GBIF-Taxon="209569004" ID-Zenodo-Dep="7859435" LSID="urn:lsid:plazi:treatment:03BC87CBC063FFB9229AEA867648FC9E" httpUri="http://treatment.plazi.org/id/03BC87CBC063FFB9229AEA867648FC9E" lastPageId="7" lastPageNumber="42" pageId="6" pageNumber="41">
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<subSubSection box="[136,440,1260,1286]" pageId="6" pageNumber="41" type="nomenclature">
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<paragraph blockId="6.[136,440,1260,1286]" box="[136,440,1260,1286]" pageId="6" pageNumber="41">
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<heading bold="true" box="[136,440,1260,1286]" fontSize="10" level="2" pageId="6" pageNumber="41" reason="3">
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<emphasis bold="true" box="[136,440,1260,1286]" pageId="6" pageNumber="41">
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<taxonomicName ID-CoL="3265Q" ID-ENA="879291" authority="Thomas, 1896" authorityName="Thomas" authorityYear="1896" box="[136,341,1260,1286]" class="Mammalia" family="Ctenomyidae" genus="Ctenomys" kingdom="Animalia" order="Rodentia" pageId="6" pageNumber="41" phylum="Chordata" rank="species" species="perrensi">
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<emphasis bold="true" box="[136,341,1260,1286]" italics="true" pageId="6" pageNumber="41">Ctenomys perrensi</emphasis>
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</taxonomicName>
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complex
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</emphasis>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="7" lastPageNumber="42" pageId="6" pageNumber="41" type="discussion">
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<paragraph blockId="6.[136,764,1331,1945]" lastBlockId="6.[794,1422,187,1944]" pageId="6" pageNumber="41">
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<taxonomicName box="[136,341,1331,1355]" class="Mammalia" family="Ctenomyidae" genus="Ctenomys" kingdom="Animalia" order="Rodentia" pageId="6" pageNumber="41" phylum="Chordata" rank="species" species="perrensi">
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<emphasis bold="true" box="[136,341,1331,1355]" italics="true" pageId="6" pageNumber="41">Ctenomys perrensi</emphasis>
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</taxonomicName>
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was initially described by Thomas (1896) based on a sample from Goya, its topotype. Afterwards, this population was ascribed to
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<taxonomicName authorityName="Lichtenstein" authorityYear="1830" box="[554,763,1400,1424]" class="Mammalia" family="Ctenomyidae" genus="Ctenomys" kingdom="Animalia" order="Rodentia" pageId="6" pageNumber="41" phylum="Chordata" rank="species" species="torquatus">
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<emphasis bold="true" box="[554,763,1400,1424]" italics="true" pageId="6" pageNumber="41">Ctenomys torquatus</emphasis>
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</taxonomicName>
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(
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<bibRefCitation author="Cabrera, A." box="[143,285,1435,1459]" pageId="6" pageNumber="41" pagination="309 - 732" refId="ref8368" refString="Cabrera, A. 1961. Catalogo de los mamiferos de America del Sur. Revista del Museo Argentino de Ciencias Naturales " Bernardino Rivadavia ". Ciencias Zoologicas 4: 309 - 732." type="journal article" year="1961">Cabrera 1961</bibRefCitation>
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,
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<bibRefCitation author="Reig, O. A. & J. R. Contreras & M. J. Piantanida" box="[295,459,1435,1459]" pageId="6" pageNumber="41" refId="ref10843" refString="Reig, O. A., J. R. Contreras and M. J. Piantanida. 1965. Contribucion" type="book" year="1965">Reig et al. 1965</bibRefCitation>
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) and also to what would be later called
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<taxonomicName authority="(Langutth and Abella 1970)" baseAuthorityName="Langutth and Abella" baseAuthorityYear="1970" box="[261,760,1470,1494]" class="Mammalia" family="Ctenomyidae" genus="Ctenomys" kingdom="Animalia" order="Rodentia" pageId="6" pageNumber="41" phylum="Chordata" rank="species" species="pearsoni">
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<emphasis bold="true" box="[261,461,1470,1494]" italics="true" pageId="6" pageNumber="41">Ctenomys pearsoni</emphasis>
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(
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<bibRefCitation author="Langutth, A. & A. Abella" box="[474,753,1470,1494]" pageId="6" pageNumber="41" pagination="1 - 20" refId="ref9835" refString="Langutth, A. and A. Abella. 1970. Las especies uruguayas del genero Ctenomys (Rodentia, Octodontidae). Com. Zool. Mus. Hist. Nat. Montevideo 10: 1 - 20." type="journal article" year="1970">Langutth and Abella 1970</bibRefCitation>
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)
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</taxonomicName>
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. During the decade of 1980 Contreras made a reassessment of the taxonomy and geographic range of Correntinean tuco-tucos, and extended the range for
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<taxonomicName box="[554,666,1574,1598]" class="Mammalia" family="Ctenomyidae" genus="Ctenomys" kingdom="Animalia" order="Rodentia" pageId="6" pageNumber="41" phylum="Chordata" rank="species" species="perrensi">
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<emphasis bold="true" box="[554,666,1574,1598]" italics="true" pageId="6" pageNumber="41">C. perrensi</emphasis>
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</taxonomicName>
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covering the central-west region of the province, from the margins of the
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<collectingRegion box="[178,255,1643,1667]" country="Brazil" name="Parana" pageId="6" pageNumber="41">Paraná</collectingRegion>
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River to the west margins of the Iberá wetland (
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<figureCitation box="[143,237,1678,1702]" captionStart="Figure 2" captionStartId="2.[136,193,1092,1112]" captionTargetBox="[139,1272,177,1060]" captionTargetId="figure-279@2.[136,1275,174,1061]" captionTargetPageId="2" captionText="Figure 2: Map showing Correntinean populations (black dots) studied by cytogenetics, mtDNA phylogeny and SSR clustering. Numbered black dots correspond to the following localities: 1-Arroyo Pehuajó, 2-Costa Mansión, 3-Estancia San Luis, 4-Mburucuyá, 5-Manantiales, 6-Loma Alta, 7-Pago Alegre, 8-Rincón de Ambrosio, 9-Colonia 3 de Abril, 10-Saladas Sur, 11-Saladas Centro, 12-Saladas Norte, 13-San Roque, 14-Goya, 15-Chavarría, 16-Paraje Sarandicito, 17-Mbarigüí, 18-Paraje Angostura, 19-San Alonso, 20-Paraje Caimán, 21-Loreto, 22-Curuzú Laurel, 23-San Miguel, 24-Santa Rosa, 25-Estancia la Tacuarita, 26-Contreras Cué. The extent of occurrency of the seven Correntinean lineages delimited in this paper was drawn according to the IUCN Red List Categories and Criteria (Anonymous 2012). We used different colors for depicting lineages: Ctenomys roigi (green), C. dorbignyi (blue), C. perrensi complex (red), Sarandicito (orange), Iberá i (pink), Iberá ii (light purple), Iberá iii (violet)." figureDoi="http://doi.org/10.5281/zenodo.7837632" httpUri="https://zenodo.org/record/7837632/files/figure.png" pageId="6" pageNumber="41">Figure 2</figureCitation>
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). This geographical range redefinition included all Correntinean populations except for the four nucleuses formerly ascribed to
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<taxonomicName box="[373,587,1747,1771]" class="Mammalia" family="Ctenomyidae" genus="Ctenomys" kingdom="Animalia" order="Rodentia" pageId="6" pageNumber="41" phylum="Chordata" rank="species" species="dorbignyi">
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<emphasis bold="true" box="[373,587,1747,1771]" italics="true" pageId="6" pageNumber="41">Ctenomys dorbignyi</emphasis>
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</taxonomicName>
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(
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<bibRefCitation author="Contreras, J. R. & J. A. Scolaro" pageId="6" pageNumber="41" pagination="21 - 30" refId="ref8915" refString="Contreras, J. R. and J. A. Scolaro. 1986. Distribucion y relaciones taxonomicas entre los cuatro nucleos geograficos disyuntos de Ctenomys dorbignyi en la Provincia de Corrientes, Argentina (Rodentia, Ctenomyidae). Hist. Nat. 6: 21 - 30." type="journal article" year="1986">Contreras and Scolaro 1986</bibRefCitation>
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, see above), the group of populations which were later alleged to
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<taxonomicName authority="(Contreras 1988)" baseAuthorityName="Contreras" baseAuthorityYear="1988" box="[365,711,1816,1840]" class="Mammalia" family="Ctenomyidae" genus="Ctenomys" kingdom="Animalia" order="Rodentia" pageId="6" pageNumber="41" phylum="Chordata" rank="species" species="roigi">
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<emphasis bold="true" box="[365,523,1816,1840]" italics="true" pageId="6" pageNumber="41">Ctenomys roigi</emphasis>
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(
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<bibRefCitation author="Contreras, J. R." box="[536,702,1816,1840]" pageId="6" pageNumber="41" pagination="51 - 67" refId="ref8816" refString="Contreras, J. R. 1988. Ctenomys roigi, una nueva especie de ' anguya tutu'de la Provincia de Corrientes, Argentina (Rodentia: Ctenomyidae). Bol. Instit. Estud. Almer.: 51 - 67." type="book chapter" year="1988">Contreras 1988</bibRefCitation>
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)
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</taxonomicName>
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, and several unstudied populations between Goya and the former southern nucleus of
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<taxonomicName authority="(Contreras et al. 1985)" baseAuthorityName="Contreras" baseAuthorityYear="1985" class="Mammalia" family="Ctenomyidae" genus="Ctenomys" kingdom="Animalia" order="Rodentia" pageId="6" pageNumber="41" phylum="Chordata" rank="species" species="dorbignyi">
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<emphasis bold="true" box="[448,577,1885,1910]" italics="true" pageId="6" pageNumber="41">C. dorbignyi</emphasis>
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(
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<bibRefCitation author="Contreras, J. R. & Y. E. Davies & A. O. Contreras" pageId="6" pageNumber="41" pagination="173 - 178" refId="ref8966" refString="Contreras, J. R., Y. E. Davies, A. O. Contreras and M. alvarez. 1985. Acerca de la distribucion de Ctenomys perrensi Thomas, 1896 y sus relaciones geograficas con las demas especies del genero (Rodentia, Ctenomyidae). Hist. Nat. 5: 173 - 178." type="journal article" year="1985">Contreras et al. 1985</bibRefCitation>
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)
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</taxonomicName>
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. However, the species range was further restricted by
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<bibRefCitation author="Ortells, M. O. & J. R. Contreras & O. A. Reig" box="[794,1002,187,211]" pageId="6" pageNumber="41" pagination="189 - 201" refId="ref10454" refString="Ortells, M. O., J. R. Contreras and O. A. Reig. 1990. New Ctenomys karyotypes (Rodentia, Octodontidae) from north-eastern Argentina and from Paraguay confirm the extreme chromosomal multiformity of the genus. Genetica 82: 189 - 201." type="journal article" year="1990">Ortells et al. (1990)</bibRefCitation>
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to the topotype (Goya) and two populations that share the same karyomorph 2n = 50 FN = 84: Rincón de Ambrosio and
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<collectingRegion box="[1092,1175,256,280]" country="Uruguay" name="Colonia" pageId="6" pageNumber="41">Colonia</collectingRegion>
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3 de Abril (
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<tableCitation box="[1323,1407,256,280]" captionStart="Table 1" captionStartId="5.[168,218,174,194]" captionTargetPageId="5" captionText="Table 1: Detailed grouping of SSR clustering (Mirol et al. 2010, Gómez Fernández et al. 2012), mtDNA phylogenetic clades (Caraballo et al. 2012) as well as diploid and chromosomal fundamental numbers (2n/FN, Caraballo et al. 2015 and references therein) of the 26 studied populations of the Ctenomys Corrientes group." httpUri="http://table.plazi.org/id/DF6A6655C060FFBB22BAEEC4763BFF42" pageId="6" pageNumber="41" tableUuid="DF6A6655C060FFBB22BAEEC4763BFF42">Table 1</tableCitation>
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). Besides, a group of populations formerly attributed to this species was indicated to be probably related to this species based on morphological similarity and the sharing of a common FN = 84 (
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<bibRefCitation author="Ortells, M. O. & J. R. Contreras & O. A. Reig" box="[994,1196,395,419]" pageId="6" pageNumber="41" pagination="189 - 201" refId="ref10454" refString="Ortells, M. O., J. R. Contreras and O. A. Reig. 1990. New Ctenomys karyotypes (Rodentia, Octodontidae) from north-eastern Argentina and from Paraguay confirm the extreme chromosomal multiformity of the genus. Genetica 82: 189 - 201." type="journal article" year="1990">Ortells et al. 1990</bibRefCitation>
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). These highly polymorphic or polytypic populations, with 2n varying from 54 to 62, were: Saladas (and nearby locations), Mburucuyá (and nearby locations), San Roque, Yataytí Calle and M.F. Mantilla. Additionally,
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<bibRefCitation author="Ortells, M. O. & J. R. Contreras & O. A. Reig" box="[1101,1313,533,558]" pageId="6" pageNumber="41" pagination="189 - 201" refId="ref10454" refString="Ortells, M. O., J. R. Contreras and O. A. Reig. 1990. New Ctenomys karyotypes (Rodentia, Octodontidae) from north-eastern Argentina and from Paraguay confirm the extreme chromosomal multiformity of the genus. Genetica 82: 189 - 201." type="journal article" year="1990">Ortells et al. (1990)</bibRefCitation>
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acknowledged the membership of the population of Curuzú Laurel (2n = 42, FN = 76) to a different lineage since it had a clearly divergent karyotype. They suggested it should be related to
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<taxonomicName authorityName="Lichtenstein" authorityYear="1830" box="[794,924,672,696]" class="Mammalia" family="Ctenomyidae" genus="Ctenomys" kingdom="Animalia" order="Rodentia" pageId="6" pageNumber="41" phylum="Chordata" rank="species" species="torquatus">
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<emphasis bold="true" box="[794,924,672,696]" italics="true" pageId="6" pageNumber="41">C. torquatus</emphasis>
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</taxonomicName>
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, a species with similar 2n and FN. According to the IUCN Red List,
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<taxonomicName box="[1028,1141,707,731]" class="Mammalia" family="Ctenomyidae" genus="Ctenomys" kingdom="Animalia" order="Rodentia" pageId="6" pageNumber="41" phylum="Chordata" rank="species" species="perrensi">
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<emphasis bold="true" box="[1028,1141,707,731]" italics="true" pageId="6" pageNumber="41">C. perrensi</emphasis>
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</taxonomicName>
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is listed as Least Concern (
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<bibRefCitation author="Bidau, C. & E. Lessa & R. Ojeda" box="[801,1000,741,766]" pageId="6" pageNumber="41" pagination="11744702" refId="ref8235" refString="Bidau, C., E. Lessa and R. Ojeda. 2008 c. Ctenomys perrensi. The IUCN Red List of Threatened Species 2008: e. T 5820 A 11744702. http: // dx. doi. org / 10.2305 / IUCN. UK. 2008. RLTS. T 5820 A 11744702. en. Downloaded on 21 June 2016." type="book chapter" year="2008">Bidau et al. 2008c</bibRefCitation>
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), although its range of occupancy does not coincide with the one described by
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<bibRefCitation author="Contreras, J. R. & Y. E. Davies & A. O. Contreras" pageId="6" pageNumber="41" pagination="173 - 178" refId="ref8966" refString="Contreras, J. R., Y. E. Davies, A. O. Contreras and M. alvarez. 1985. Acerca de la distribucion de Ctenomys perrensi Thomas, 1896 y sus relaciones geograficas con las demas especies del genero (Rodentia, Ctenomyidae). Hist. Nat. 5: 173 - 178." type="journal article" year="1985">Contreras et al. (1985)</bibRefCitation>
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or
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<bibRefCitation author="Ortells, M. O. & J. R. Contreras & O. A. Reig" box="[892,1099,811,835]" pageId="6" pageNumber="41" pagination="189 - 201" refId="ref10454" refString="Ortells, M. O., J. R. Contreras and O. A. Reig. 1990. New Ctenomys karyotypes (Rodentia, Octodontidae) from north-eastern Argentina and from Paraguay confirm the extreme chromosomal multiformity of the genus. Genetica 82: 189 - 201." type="journal article" year="1990">Ortells et al. (1990)</bibRefCitation>
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.
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</paragraph>
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<paragraph blockId="6.[794,1422,187,1944]" pageId="6" pageNumber="41">
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Under an integrative approach we delimit an extended lineage, the
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<taxonomicName box="[938,1140,880,904]" class="Mammalia" family="Ctenomyidae" genus="Ctenomys" kingdom="Animalia" order="Rodentia" pageId="6" pageNumber="41" phylum="Chordata" rank="species" species="perrensi">
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<emphasis bold="true" box="[938,1140,880,904]" italics="true" pageId="6" pageNumber="41">Ctenomys perrensi</emphasis>
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</taxonomicName>
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complex, encompassing all 2n <70 FN = 84 forms of the
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<collectingRegion box="[1132,1244,915,939]" country="Argentina" name="Corrientes" pageId="6" pageNumber="41">Corrientes</collectingRegion>
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group (
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<tableCitation box="[1328,1406,915,939]" captionStart="Table 1" captionStartId="5.[168,218,174,194]" captionTargetPageId="5" captionText="Table 1: Detailed grouping of SSR clustering (Mirol et al. 2010, Gómez Fernández et al. 2012), mtDNA phylogenetic clades (Caraballo et al. 2012) as well as diploid and chromosomal fundamental numbers (2n/FN, Caraballo et al. 2015 and references therein) of the 26 studied populations of the Ctenomys Corrientes group." httpUri="http://table.plazi.org/id/DF6A6655C060FFBB22BAEEC4763BFF42" pageId="6" pageNumber="41" tableUuid="DF6A6655C060FFBB22BAEEC4763BFF42">Table 1</tableCitation>
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). These karyomorphs are the products of Robertsonian rearrangements (
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<bibRefCitation author="Ortells, M. O. & J. R. Contreras & O. A. Reig" box="[982,1184,984,1008]" pageId="6" pageNumber="41" pagination="189 - 201" refId="ref10454" refString="Ortells, M. O., J. R. Contreras and O. A. Reig. 1990. New Ctenomys karyotypes (Rodentia, Octodontidae) from north-eastern Argentina and from Paraguay confirm the extreme chromosomal multiformity of the genus. Genetica 82: 189 - 201." type="journal article" year="1990">Ortells et al. 1990</bibRefCitation>
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,
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<bibRefCitation author="Lanzone, C. & M. D. Gimenez & J. L. Santos & C. J. Bidau" box="[1197,1417,984,1008]" pageId="6" pageNumber="41" pagination="233 - 244" refId="ref9875" refString="Lanzone, C., M. D. Gimenez, J. L. Santos and C. J. Bidau. 2007. Meiotic effects of Robertsonian translocations in tuco-tucos of the Ctenomys perrensi superspecies (Rodentia: Ctenomyidae). Caryologia 60: 233 - 244." type="journal article" year="2007">Lanzone et al. 2007</bibRefCitation>
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,
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<bibRefCitation author="Caraballo, D. A. & P. C. Jablonski & P. J. Rebagliati & M. S. Rossi" box="[794,1033,1018,1043]" pageId="6" pageNumber="41" pagination="289 - 301" refId="ref8604" refString="Caraballo, D. A., P. C. Jablonski, P. J. Rebagliati and M. S. Rossi. 2015. Chromosomal variability in tuco-tucos (Ctenomys, Rodentia) from the argentinean northeastern wetlands. Mastozool. Neotrop. 22: 289 - 301." type="journal article" year="2015">Caraballo et al. 2015</bibRefCitation>
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), which not necessarily constitute reproductive barriers. In fact,
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<bibRefCitation author="Lanzone, C. & M. D. Gimenez & J. L. Santos & C. J. Bidau" box="[1111,1333,1053,1077]" pageId="6" pageNumber="41" pagination="233 - 244" refId="ref9875" refString="Lanzone, C., M. D. Gimenez, J. L. Santos and C. J. Bidau. 2007. Meiotic effects of Robertsonian translocations in tuco-tucos of the Ctenomys perrensi superspecies (Rodentia: Ctenomyidae). Caryologia 60: 233 - 244." type="journal article" year="2007">Lanzone et al. (2007)</bibRefCitation>
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showed that, in Correntinean tuco-tucos, heterozygotes bearing one or two centric fusion/fission rearrangements depicted normal pairing of homologous chromosomal arms. These results suggest that at least two Robertsonian changes would not act as a barrier to gene flow and can persist as intraspecific polymorphisms or polytypisms. However, heterozygotes for three or more centric fusions/fissions have not been reported in the
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<collectingRegion box="[1144,1256,1331,1355]" country="Argentina" name="Corrientes" pageId="6" pageNumber="41">Corrientes</collectingRegion>
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group (
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<bibRefCitation author="Ortells, M. O. & J. R. Contreras & O. A. Reig" pageId="6" pageNumber="41" pagination="189 - 201" refId="ref10454" refString="Ortells, M. O., J. R. Contreras and O. A. Reig. 1990. New Ctenomys karyotypes (Rodentia, Octodontidae) from north-eastern Argentina and from Paraguay confirm the extreme chromosomal multiformity of the genus. Genetica 82: 189 - 201." type="journal article" year="1990">Ortells et al. 1990</bibRefCitation>
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,
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<bibRefCitation author="Lanzone, C. & M. D. Gimenez & J. L. Santos & C. J. Bidau" box="[916,1127,1365,1389]" pageId="6" pageNumber="41" pagination="233 - 244" refId="ref9875" refString="Lanzone, C., M. D. Gimenez, J. L. Santos and C. J. Bidau. 2007. Meiotic effects of Robertsonian translocations in tuco-tucos of the Ctenomys perrensi superspecies (Rodentia: Ctenomyidae). Caryologia 60: 233 - 244." type="journal article" year="2007">Lanzone et al. 2007</bibRefCitation>
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,
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<bibRefCitation author="Caraballo, D. A. & P. C. Jablonski & P. J. Rebagliati & M. S. Rossi" box="[1136,1360,1365,1389]" pageId="6" pageNumber="41" pagination="289 - 301" refId="ref8604" refString="Caraballo, D. A., P. C. Jablonski, P. J. Rebagliati and M. S. Rossi. 2015. Chromosomal variability in tuco-tucos (Ctenomys, Rodentia) from the argentinean northeastern wetlands. Mastozool. Neotrop. 22: 289 - 301." type="journal article" year="2015">Caraballo et al. 2015</bibRefCitation>
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), suggesting that highly Robertsonian-rearranged karyotypes are likely to produce hybrid sterility (
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<bibRefCitation author="Baker, R. J. & J. W. Bickham" pageId="6" pageNumber="41" pagination="8245 - 8248" refId="ref7978" refString="Baker, R. J. and J. W. Bickham. 1986. Speciation by monobrachial centric fusions. Proc. Natl. Acad Sci. USA 83: 8245 - 8248." type="journal article" year="1986">Baker and Bickham 1986</bibRefCitation>
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). Karyomorphs with FN = 84 and 2n = 50 to 2n = 66 could form part of a chromosomal cline of neighboring interfertile or semi-interfertile forms, as occurs in the case of the Brazilian species
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<taxonomicName authorityName="Nehring" authorityYear="1887" box="[1061,1259,1573,1597]" class="Mammalia" family="Ctenomyidae" genus="Ctenomys" kingdom="Animalia" order="Rodentia" pageId="6" pageNumber="41" phylum="Chordata" rank="species" species="minutus">
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<emphasis bold="true" box="[1061,1259,1573,1597]" italics="true" pageId="6" pageNumber="41">Ctenomys minutus</emphasis>
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</taxonomicName>
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and
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<taxonomicName authorityName="Freitas" authorityYear="2001" class="Mammalia" family="Ctenomyidae" genus="Ctenomys" kingdom="Animalia" order="Rodentia" pageId="6" pageNumber="41" phylum="Chordata" rank="species" species="lami">
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<emphasis bold="true" italics="true" pageId="6" pageNumber="41">Ctenomys lami</emphasis>
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</taxonomicName>
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(
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<bibRefCitation author="Gava, A. & T. R. O. Freitas" box="[854,1098,1608,1632]" pageId="6" pageNumber="41" pagination="11 - 17" refId="ref9533" refString="Gava, A. and T. R. O. Freitas. 2003. Inter and intra-specific hybridization in tuco-tucos (Ctenomys) from Brazilian coastal plains (Rodentia: Ctenomyidae). Genetica 119: 11 - 17." type="journal article" year="2003">Gava and Freitas 2003</bibRefCitation>
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,
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<bibRefCitation author="Lopes, C. M. & S. S. F. Ximenes & A. Gava & T. R. O. Freitas" box="[1108,1291,1608,1632]" pageId="6" pageNumber="41" pagination="293 - 305" refId="ref10022" refString="Lopes, C. M., S. S. F. Ximenes, A. Gava and T. R. O. Freitas. 2013. The role of chromosomal rearrangements and geographical barriers in the divergence of lineages in a South American subterranean rodent (Rodentia: Ctenomyidae): Ctenomys minutus. Heredity 111: 293 - 305." type="journal article" year="2013">Lopes et al. 2013</bibRefCitation>
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).
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</paragraph>
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<paragraph blockId="6.[794,1422,187,1944]" lastBlockId="7.[166,794,187,801]" lastPageId="7" lastPageNumber="42" pageId="6" pageNumber="41">
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To evaluate the
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<taxonomicName box="[1022,1220,1642,1666]" class="Mammalia" family="Ctenomyidae" genus="Ctenomys" kingdom="Animalia" order="Rodentia" pageId="6" pageNumber="41" phylum="Chordata" rank="species" species="perrensi">
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<emphasis bold="true" box="[1022,1220,1642,1666]" italics="true" pageId="6" pageNumber="41">Ctenomys perrensi</emphasis>
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</taxonomicName>
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complex from an integrative point of view, we should revise coincidences and discordances between SSR clustering and mtDNA phylogeny. The mtDNA phylogeny splits this complex into two clades: clade 2 including the populations of
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<taxonomicName authority="sensu Ortells et al. (1990)" authorityName="Ortells" authorityYear="1990" class="Mammalia" family="Ctenomyidae" genus="Ctenomys" kingdom="Animalia" order="Rodentia" pageId="6" pageNumber="41" phylum="Chordata" rank="species" species="perrensi">
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<emphasis bold="true" italics="true" pageId="6" pageNumber="41">Ctenomys perrensi sensu</emphasis>
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<bibRefCitation author="Ortells, M. O. & J. R. Contreras & O. A. Reig" box="[958,1176,1816,1840]" pageId="6" pageNumber="41" pagination="189 - 201" refId="ref10454" refString="Ortells, M. O., J. R. Contreras and O. A. Reig. 1990. New Ctenomys karyotypes (Rodentia, Octodontidae) from north-eastern Argentina and from Paraguay confirm the extreme chromosomal multiformity of the genus. Genetica 82: 189 - 201." type="journal article" year="1990">Ortells et al. (1990)</bibRefCitation>
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</taxonomicName>
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, Chavarría and Paraje Sarandicito (
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<tableCitation box="[931,1007,1850,1875]" captionStart="Table 1" captionStartId="5.[168,218,174,194]" captionTargetPageId="5" captionText="Table 1: Detailed grouping of SSR clustering (Mirol et al. 2010, Gómez Fernández et al. 2012), mtDNA phylogenetic clades (Caraballo et al. 2012) as well as diploid and chromosomal fundamental numbers (2n/FN, Caraballo et al. 2015 and references therein) of the 26 studied populations of the Ctenomys Corrientes group." httpUri="http://table.plazi.org/id/DF6A6655C060FFBB22BAEEC4763BFF42" pageId="6" pageNumber="41" tableUuid="DF6A6655C060FFBB22BAEEC4763BFF42">Table 1</tableCitation>
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) and clade 1, including the remaining populations as well as
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<taxonomicName baseAuthorityName="Contreras" baseAuthorityYear="1988" box="[1032,1185,1885,1909]" class="Mammalia" family="Ctenomyidae" genus="Ctenomys" kingdom="Animalia" order="Rodentia" pageId="6" pageNumber="41" phylum="Chordata" rank="species" species="roigi">
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<emphasis bold="true" box="[1032,1185,1885,1909]" italics="true" pageId="6" pageNumber="41">Ctenomys roigi</emphasis>
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</taxonomicName>
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which is, as discussed above, a different monophyletic lineage. The members of clades 1 and 2 of the
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<taxonomicName box="[377,487,187,211]" class="Mammalia" family="Ctenomyidae" genus="Ctenomys" kingdom="Animalia" order="Rodentia" pageId="7" pageNumber="42" phylum="Chordata" rank="species" species="perrensi">
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<emphasis bold="true" box="[377,487,187,211]" italics="true" pageId="7" pageNumber="42">C. perrensi</emphasis>
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</taxonomicName>
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complex resulted intermixed in SSR clusters (
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<tableCitation box="[331,405,222,246]" captionStart="Table 1" captionStartId="5.[168,218,174,194]" captionTargetPageId="5" captionText="Table 1: Detailed grouping of SSR clustering (Mirol et al. 2010, Gómez Fernández et al. 2012), mtDNA phylogenetic clades (Caraballo et al. 2012) as well as diploid and chromosomal fundamental numbers (2n/FN, Caraballo et al. 2015 and references therein) of the 26 studied populations of the Ctenomys Corrientes group." httpUri="http://table.plazi.org/id/DF6A6655C060FFBB22BAEEC4763BFF42" pageId="7" pageNumber="42" tableUuid="DF6A6655C060FFBB22BAEEC4763BFF42">Table 1</tableCitation>
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). With the exception of cluster G, that groups Santa Rosa and San Miguel which are highly divergent populations in terms of their karyotypes and mtDNA identity and hence this grouping is likely to be artificial, all members of the
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<taxonomicName box="[340,452,361,385]" class="Mammalia" family="Ctenomyidae" genus="Ctenomys" kingdom="Animalia" order="Rodentia" pageId="7" pageNumber="42" phylum="Chordata" rank="species" species="perrensi">
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<emphasis bold="true" box="[340,452,361,385]" italics="true" pageId="7" pageNumber="42">C. perrensi</emphasis>
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</taxonomicName>
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complex fall into exclusive SSR clusters (
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<tableCitation box="[266,347,395,419]" captionStart="Table 1" captionStartId="5.[168,218,174,194]" captionTargetPageId="5" captionText="Table 1: Detailed grouping of SSR clustering (Mirol et al. 2010, Gómez Fernández et al. 2012), mtDNA phylogenetic clades (Caraballo et al. 2012) as well as diploid and chromosomal fundamental numbers (2n/FN, Caraballo et al. 2015 and references therein) of the 26 studied populations of the Ctenomys Corrientes group." httpUri="http://table.plazi.org/id/DF6A6655C060FFBB22BAEEC4763BFF42" pageId="7" pageNumber="42" tableUuid="DF6A6655C060FFBB22BAEEC4763BFF42">Table 1</tableCitation>
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). Taken together, the mtDNA phylogeny and SSR clusters suggest these are recently diverged populations which share randomly assorted ancestral variants and/or are or have been genetically connected.
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</paragraph>
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<paragraph blockId="7.[166,794,187,801]" pageId="7" pageNumber="42">
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We consider Santa Rosa as a member of this complex, not only because it shares the same FN and is included in this group in the mtDNA phylogeny, but also because it falls into an exclusive cluster with all
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<taxonomicName box="[594,794,638,662]" class="Mammalia" family="Ctenomyidae" genus="Ctenomys" kingdom="Animalia" order="Rodentia" pageId="7" pageNumber="42" phylum="Chordata" rank="species" species="perrensi">
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<emphasis bold="true" box="[594,794,638,662]" italics="true" pageId="7" pageNumber="42">Ctenomys perrensi</emphasis>
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</taxonomicName>
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complex populations (San Roque, Chavarría and Goya) in previous SSR clusters (
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<bibRefCitation author="Mirol, P. & M. D. Gimenez & J. B. Searle & C. J. Bidau & C. G. Faulkes" box="[422,611,707,731]" pageId="7" pageNumber="42" pagination="368 - 383" refId="ref10200" refString="Mirol, P., M. D. Gimenez, J. B. Searle, C. J. Bidau and C. G. Faulkes. 2010. Population and species boundaries in the South American subterranean rodent Ctenomys in a dynamic environment. Biol. J. Linnean Soc. 100: 368 - 383." type="journal article" year="2010">Mirol et al. 2010</bibRefCitation>
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). In turn, Paraje Sarandicito is not considered part of this lineage and will be discussed in the following item.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |