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<mods:title id="F65CC995829DFD9571E7DE8B91E5B1C7">A review on the cytogenetics of the tribe Oryzomyini (Rodentia: Cricetidae: Sigmodontinae), with the description of new karyotypes</mods:title>
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<mods:namePart id="E6DA400CF2EBADA7496870A511EAA419">Moreira, Camila Do Nascimento</mods:namePart>
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<mods:namePart id="58C4A788CA2DC68A7C31AC6CD6762EC0">Percequillo, Alexandre Reis</mods:namePart>
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<mods:namePart id="7DD9BF8197F56D126767670D2F752400">Yonenaga-Yassuda, Yatiyo</mods:namePart>
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<mods:title id="1F7F113532F353592556428740498CA0">Zootaxa</mods:title>
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<mods:date id="0FEAE444CFA10885554AE797DF92F32F">2020</mods:date>
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<treatment id="03A587ED3218FFF283E9FCDD2F7EF83D" ID-DOI="http://doi.org/10.5281/zenodo.4424150" ID-GBIF-Taxon="179917897" ID-Zenodo-Dep="4424150" LSID="urn:lsid:plazi:treatment:03A587ED3218FFF283E9FCDD2F7EF83D" httpUri="http://treatment.plazi.org/id/03A587ED3218FFF283E9FCDD2F7EF83D" lastPageNumber="40" pageId="39" pageNumber="40">
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<subSubSection id="C31665703218FFF283E9FCDD2CC7F881" pageId="39" pageNumber="40" type="nomenclature">
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<paragraph id="8BB336FB3218FFF283E9FCDD2DAAFCF4" blockId="39.[151,1437,794,2042]" box="[151,385,794,819]" pageId="39" pageNumber="40">
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<heading id="D0FB81973218FFF283E9FCDD2DAAFCF4" box="[151,385,794,819]" fontSize="11" level="2" pageId="39" pageNumber="40" reason="5">
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<taxonomicName id="4C0C4D783218FFF283E9FCDD2DAAFCF4" baseAuthorityName="Brants" baseAuthorityYear="1827" box="[151,385,794,819]" class="Mammalia" family="Muridae" genus="Nectomys" kingdom="Animalia" order="Rodentia" pageId="39" pageNumber="40" phylum="Chordata" rank="species" species="squamipes">
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<emphasis id="B978EAE93218FFF283E9FCDD2DAAFCF4" box="[151,385,794,819]" italics="true" pageId="39" pageNumber="40">Nectomys squamipes</emphasis>
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</taxonomicName>
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</heading>
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</paragraph>
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<paragraph id="8BB336FB3218FFF283B9FCF92CC7F881" blockId="39.[151,1437,794,2042]" pageId="39" pageNumber="40">
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Karyotype: 2n = 56 and FN = 56. Autosomal complement: one small metacentric pair and 26 acrocentric pairs large to small decreasing in size (
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<bibRefCitation id="EF9D4B0A3218FFF2816AFCA62EFEFCBC" author="Maia, V. & Yonenaga-Yassuda, Y. & Freitas, T. R. O. & Kasahara, S. & Sune-Mattevi, M. & Oliveira, L. F. & Galindo, M. A. & Sbalqueiro, I. J." box="[532,725,865,892]" pageId="39" pageNumber="40" pagination="121 - 128" refId="ref68942" refString="Maia, V., Yonenaga-Yassuda, Y., Freitas, T. R. O., Kasahara, S., Sune-Mattevi, M., Oliveira, L. F., Galindo, M. A. & Sbalqueiro, I. J. (1984) Supernumerary chromosomes, Robertsonian rearrangement and variability of the sex chromosomes in Nectomys squamipes (Cricetidae, Rodentia). Genetica, 63 (2), 121 - 128. https: // doi. org / 10.1007 / BF 00605896" type="journal article" year="1984">
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Maia
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<emphasis id="B978EAE93218FFF28126FCA52EA0FCBC" box="[600,651,865,891]" italics="true" pageId="39" pageNumber="40">et al</emphasis>
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. 1984
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</bibRefCitation>
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, pp. 123,
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<figureCitation id="13372A7E3218FFF28038FCA62FB6FCBC" box="[838,925,865,891]" captionStart="FIGURE 2" captionStartId="7.[151,250,1191,1215]" captionTargetBox="[159,1426,281,1162]" captionTargetId="figure-69@7.[151,1436,273,1168]" captionTargetPageId="7" captionText="FIGURE 2. Distribution of diploid and fundamental number of karyotyped specimens of genus Cerradomys. (□) C. akroai; (■) C. goytaca; (ê) C. langguthi; (r) C. maracajuensis; (▲) C. marinhus; (○) C. scotti; (☆) C. subflavus; (l) C. vivoi." figureDoi="http://doi.org/10.5281/zenodo.4423619" httpUri="https://zenodo.org/record/4423619/files/figure.png" pageId="39" pageNumber="40">Fig. 2E</figureCitation>
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;
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<bibRefCitation id="EF9D4B0A3218FFF280D7FCA62928FCBC" author="Yonenaga-Yassuda, Y. & Maia, V & L'Abbate, M." box="[937,1283,865,892]" pageId="39" pageNumber="40" pagination="25 - 39" refId="ref76255" refString="Yonenaga-Yassuda, Y., Maia, V, & L'Abbate, M. (1988) Two tandem fusions and supernumerary chromosomes in Nectomys squamipes (Cricetidae, Rodentia). Caryologia, 41 (1), 25 - 39. https: // doi. org / 10.1080 / 00087114.1988.10797845" type="journal article" year="1988">
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Yonenaga-Yassuda
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. 1988
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;
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Barros
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Bonvicino
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. 1996
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Andrades-Miranda
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<bibRefCitation id="EF9D4B0A3218FFF28290FC6E2EE7FC04" author="Di-Nizo, C. B. & Neves, C. L. & Vilela, J. F. & Silva, M. J. J." box="[494,716,937,964]" pageId="39" pageNumber="40" pagination="11 - 30" refId="ref66320" refString="Di-Nizo, C. B., Neves, C. L., Vilela, J. F. & Silva, M. J. J. (2014) New karyologycal data and cytotaxonomic considerations on small mammals from Santa Virginia (Parque Estadual da Serra do Mar, Atlantic Forest, Brazil). Comparative cytogenetics, 8 (1), 11 - 30. https: // doi. org / 10.3897 / compcytogen. v 8 i 1.6430" type="journal article" year="2014">
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Gatto-Almeida
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). Sex chromosomes: X chromosome presented two different morphologies, a large submetacentric, and a large subtelocentric; Y chromosome presented three different morphologies, a medium metacentric, a medium submetacentric, and a medium to small subtelocentric (
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<bibRefCitation id="EF9D4B0A3218FFF283B2FBD22DA7FBE8" author="Maia, V. & Yonenaga-Yassuda, Y. & Freitas, T. R. O. & Kasahara, S. & Sune-Mattevi, M. & Oliveira, L. F. & Galindo, M. A. & Sbalqueiro, I. J." box="[204,396,1045,1072]" pageId="39" pageNumber="40" pagination="121 - 128" refId="ref68942" refString="Maia, V., Yonenaga-Yassuda, Y., Freitas, T. R. O., Kasahara, S., Sune-Mattevi, M., Oliveira, L. F., Galindo, M. A. & Sbalqueiro, I. J. (1984) Supernumerary chromosomes, Robertsonian rearrangement and variability of the sex chromosomes in Nectomys squamipes (Cricetidae, Rodentia). Genetica, 63 (2), 121 - 128. https: // doi. org / 10.1007 / BF 00605896" type="journal article" year="1984">
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Maia
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<bibRefCitation id="EF9D4B0A3218FFF282E6FBD22E9BFBE8" author="Yonenaga-Yassuda, Y. & Maia, V & L'Abbate, M." box="[408,688,1045,1071]" pageId="39" pageNumber="40" pagination="25 - 39" refId="ref76255" refString="Yonenaga-Yassuda, Y., Maia, V, & L'Abbate, M. (1988) Two tandem fusions and supernumerary chromosomes in Nectomys squamipes (Cricetidae, Rodentia). Caryologia, 41 (1), 25 - 39. https: // doi. org / 10.1080 / 00087114.1988.10797845" type="journal article" year="1988">Yonenaga-Yassuda 1988</bibRefCitation>
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;
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<bibRefCitation id="EF9D4B0A3218FFF281C3FBD12FA7FBE8" author="Barros, M. A. & Reig, O. A. & Perez-Zapata, A." box="[701,908,1045,1072]" pageId="39" pageNumber="40" pagination="34 - 38" refId="ref64291" refString="Barros, M. A., Reig, O. A. & Perez-Zapata, A. (1992) Cytogenetics and karyosystematics of South American Oryzomyine rodents (Cricetidae: Sigmodontinae). Cytogenetics and cell genetics, 59, 34 - 38. https: // doi. org / 10.1159 / 000133195" type="journal article" year="1992">
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Barros
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. 1992
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;
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<bibRefCitation id="EF9D4B0A3218FFF280E7FBD22937FBE8" author="Silva, M. J. J. & Yonenaga-Yassuda, Y." box="[921,1308,1045,1071]" pageId="39" pageNumber="40" pagination="455 - 462" refId="ref73412" refString="Silva, M. J. J. & Yonenaga-Yassuda, Y. (1998 a) Heterogeneity and meiotic behaviour of B and sex chromosomes, banding patterns and localization of (TTAGGG) n sequences by fluorescence in situ hybridization in the neotropical water rat Nectomys (Rodentia, Cricetidae). Chromosome Research, 6, 455 - 462. https: // doi. org / 10.1023 / A: 1009248311530" type="journal article" year="1998">Silva & Yonenaga-Yassuda 1998a</bibRefCitation>
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; Andrades-Miranda
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. 2001b;
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Di-Nizo
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Gatto-Almeida
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). A different diploid number of 57 to 59 were reported due to the presence of 1 to 3 supernumerary chromosomes. Two different
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<typeStatus id="54B788593218FFF2861FFB9929B7FBBF" box="[1377,1436,1118,1144]" pageId="39" pageNumber="40">types</typeStatus>
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of supernumerary chromosomes were reported: a medium submetacentric, and a medium acrocentric (
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<bibRefCitation id="EF9D4B0A3218FFF28661FB462CF9FB78" author="Maia, V. & Yonenaga-Yassuda, Y. & Freitas, T. R. O. & Kasahara, S. & Sune-Mattevi, M. & Oliveira, L. F. & Galindo, M. A. & Sbalqueiro, I. J." pageId="39" pageNumber="40" pagination="121 - 128" refId="ref68942" refString="Maia, V., Yonenaga-Yassuda, Y., Freitas, T. R. O., Kasahara, S., Sune-Mattevi, M., Oliveira, L. F., Galindo, M. A. & Sbalqueiro, I. J. (1984) Supernumerary chromosomes, Robertsonian rearrangement and variability of the sex chromosomes in Nectomys squamipes (Cricetidae, Rodentia). Genetica, 63 (2), 121 - 128. https: // doi. org / 10.1007 / BF 00605896" type="journal article" year="1984">
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Maia
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<bibRefCitation id="EF9D4B0A3218FFF283A0FB622E1DFB78" author="Yonenaga-Yassuda, Y. & Maia, V & L'Abbate, M." box="[222,566,1189,1216]" pageId="39" pageNumber="40" pagination="25 - 39" refId="ref76255" refString="Yonenaga-Yassuda, Y., Maia, V, & L'Abbate, M. (1988) Two tandem fusions and supernumerary chromosomes in Nectomys squamipes (Cricetidae, Rodentia). Caryologia, 41 (1), 25 - 39. https: // doi. org / 10.1080 / 00087114.1988.10797845" type="journal article" year="1988">
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Yonenaga-Yassuda
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;
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<bibRefCitation id="EF9D4B0A3218FFF2813DFB612F39FB78" author="Barros, M. A. & Reig, O. A. & Perez-Zapata, A." box="[579,786,1189,1216]" pageId="39" pageNumber="40" pagination="34 - 38" refId="ref64291" refString="Barros, M. A., Reig, O. A. & Perez-Zapata, A. (1992) Cytogenetics and karyosystematics of South American Oryzomyine rodents (Cricetidae: Sigmodontinae). Cytogenetics and cell genetics, 59, 34 - 38. https: // doi. org / 10.1159 / 000133195" type="journal article" year="1992">
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Barros
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<emphasis id="B978EAE93218FFF281E8FB612EE3FB78" box="[662,712,1189,1215]" italics="true" pageId="39" pageNumber="40">et al</emphasis>
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. 1992
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;
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<bibRefCitation id="EF9D4B0A3218FFF28061FB62288AFB78" author="Silva, M. J. J. & Yonenaga-Yassuda, Y." box="[799,1185,1189,1215]" pageId="39" pageNumber="40" pagination="455 - 462" refId="ref73412" refString="Silva, M. J. J. & Yonenaga-Yassuda, Y. (1998 a) Heterogeneity and meiotic behaviour of B and sex chromosomes, banding patterns and localization of (TTAGGG) n sequences by fluorescence in situ hybridization in the neotropical water rat Nectomys (Rodentia, Cricetidae). Chromosome Research, 6, 455 - 462. https: // doi. org / 10.1023 / A: 1009248311530" type="journal article" year="1998">Silva & Yonenaga-Yassuda 1998a</bibRefCitation>
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;
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<bibRefCitation id="EF9D4B0A3218FFF287D2FB622D2FFB24" author="Andrades-Miranda, J. & Oliveira, L. F. B. & Zanchin, N. I. T. & Mattevi, M. S." pageId="39" pageNumber="40" pagination="269 - 278" refId="ref63792" refString="Andrades-Miranda, J., Oliveira, L. F. B., Zanchin, N. I. T. & Mattevi, M. S. (2001 b) Chromosomal description of the rodent genera Oecomys and Nectomys from Brazil. Acta Theriologica, 46 (3), 269 - 278. https: // doi. org / 10.1007 / BF 03192433" type="journal article" year="2001">
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Andrades-Miranda
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<bibRefCitation id="EF9D4B0A3218FFF28270FB0D2DDFFB24" author="Paresque, R. & Souza, W. P. & Mendes, S. L. & Fagundes, V." box="[270,500,1225,1252]" pageId="39" pageNumber="40" pagination="5 - 33" refId="ref70883" refString="Paresque, R., Souza, W. P., Mendes, S. L. & Fagundes, V. (2004) Composicao cariotipica da fauna de roedores e marsupiais de duas areas de Mata Atlantica do Espirito Santo, Brasil. Boletim do Museu de Biologia Mello Leitao, 17, 5 - 33." type="journal article" year="2004">
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Paresque
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<bibRefCitation id="EF9D4B0A3218FFF28280FB0E2EF1FB24" author="Di-Nizo, C. B. & Neves, C. L. & Vilela, J. F. & Silva, M. J. J." box="[510,730,1225,1252]" pageId="39" pageNumber="40" pagination="11 - 30" refId="ref66320" refString="Di-Nizo, C. B., Neves, C. L., Vilela, J. F. & Silva, M. J. J. (2014) New karyologycal data and cytotaxonomic considerations on small mammals from Santa Virginia (Parque Estadual da Serra do Mar, Atlantic Forest, Brazil). Comparative cytogenetics, 8 (1), 11 - 30. https: // doi. org / 10.3897 / compcytogen. v 8 i 1.6430" type="journal article" year="2014">
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Di-Nizo
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<emphasis id="B978EAE93218FFF2811EFB0D2EBBFB24" box="[608,656,1225,1251]" italics="true" pageId="39" pageNumber="40">et al</emphasis>
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;
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<bibRefCitation id="EF9D4B0A3218FFF2819AFB0E2826FB23" author="Gatto-Almeida, F. & Pontes, J. S. & Sbalqueiro, I. J. & Hass, I. & Tiepolo, L. M. & Quadros, J." box="[740,1037,1225,1252]" pageId="39" pageNumber="40" pagination="69 - 96" refId="ref67163" refString="Gatto-Almeida, F., Pontes, J. S., Sbalqueiro, I. J., Hass, I., Tiepolo, L. M. & Quadros, J. (2016) Diversidade, biogeografia, caracterizacao cariotipica e tricologica dos pequenos mamiferos nao voadores do Parque Estadual Rio da Onca, Litoral Sul do Parana. Papeis avulsos de zoologia, 56 (7), 69 - 96. https: // doi. org / 10.11606 / 0031 - 1049.2016.56.07" type="journal article" year="2016">
|
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Gatto-Almeida
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<emphasis id="B978EAE93218FFF280ECFB0D2FE8FB24" box="[914,963,1225,1251]" italics="true" pageId="39" pageNumber="40">et al</emphasis>
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. 2016
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</bibRefCitation>
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). Another diploid number of 55 was reported by
|
|
<bibRefCitation id="EF9D4B0A3218FFF2825EFB2A2DC4FAC0" author="Maia, V. & Yonenaga-Yassuda, Y. & Freitas, T. R. O. & Kasahara, S. & Sune-Mattevi, M. & Oliveira, L. F. & Galindo, M. A. & Sbalqueiro, I. J." box="[288,495,1261,1288]" pageId="39" pageNumber="40" pagination="121 - 128" refId="ref68942" refString="Maia, V., Yonenaga-Yassuda, Y., Freitas, T. R. O., Kasahara, S., Sune-Mattevi, M., Oliveira, L. F., Galindo, M. A. & Sbalqueiro, I. J. (1984) Supernumerary chromosomes, Robertsonian rearrangement and variability of the sex chromosomes in Nectomys squamipes (Cricetidae, Rodentia). Genetica, 63 (2), 121 - 128. https: // doi. org / 10.1007 / BF 00605896" type="journal article" year="1984">
|
|
Maia
|
|
<emphasis id="B978EAE93218FFF2821FFB292DB8FAC0" box="[353,403,1261,1287]" italics="true" pageId="39" pageNumber="40">et al</emphasis>
|
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. (1984)
|
|
</bibRefCitation>
|
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, for a sample from
|
|
<collectingRegion id="49C8F8193218FFF281B3FB2A2F69FAC0" box="[717,834,1261,1287]" country="Brazil" name="Sao Paulo" pageId="39" pageNumber="40">São Paulo</collectingRegion>
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|
, state of
|
|
<collectingCountry id="F31B766B3218FFF280D6FB2A2FC7FAC0" box="[936,1004,1261,1287]" name="Brazil" pageId="39" pageNumber="40">Brazil</collectingCountry>
|
|
(
|
|
<tableCitation id="C68E03403218FFF28085FB2A2878FACF" box="[1019,1107,1261,1288]" captionStart="TABLE 7" captionStartId="40.[151,239,528,554]" captionTargetPageId="40" captionText="TABLE 7. Karyotype data of genus Nectomys. Species, diploid (2n) and fundamental (FN) numbers, collection localities, geographic coordinates and reference." pageId="39" pageNumber="40">Table 7</tableCitation>
|
|
), due to a Robertsonian rearrangement between two acrocentric chromosomes, these authors also reported a mosaicism of 56/57 with a B chromosome.
|
|
<bibRefCitation id="EF9D4B0A3218FFF2827AFAF12DCAFA88" author="Barros, M. A. & Reig, O. A. & Perez-Zapata, A." box="[260,481,1333,1360]" pageId="39" pageNumber="40" pagination="34 - 38" refId="ref64291" refString="Barros, M. A., Reig, O. A. & Perez-Zapata, A. (1992) Cytogenetics and karyosystematics of South American Oryzomyine rodents (Cricetidae: Sigmodontinae). Cytogenetics and cell genetics, 59, 34 - 38. https: // doi. org / 10.1159 / 000133195" type="journal article" year="1992">
|
|
Barros
|
|
<emphasis id="B978EAE93218FFF2822BFAF12DADFA88" box="[341,390,1333,1359]" italics="true" pageId="39" pageNumber="40">et al</emphasis>
|
|
. (1992)
|
|
</bibRefCitation>
|
|
, reported a fundamental number of 54 for a sample from Misiones, state of
|
|
<collectingCountry id="F31B766B3218FFF28653FAF229B7FA88" box="[1325,1436,1333,1359]" name="Argentina" pageId="39" pageNumber="40">Argentina</collectingCountry>
|
|
(
|
|
<tableCitation id="C68E03403218FFF283E1FA9E2CDEFAB3" box="[159,245,1369,1396]" captionStart="TABLE 7" captionStartId="40.[151,239,528,554]" captionTargetPageId="40" captionText="TABLE 7. Karyotype data of genus Nectomys. Species, diploid (2n) and fundamental (FN) numbers, collection localities, geographic coordinates and reference." pageId="39" pageNumber="40">Table 7</tableCitation>
|
|
,
|
|
<figureCitation id="13372A7E3218FFF2827EFA9E2D7BFAB4" box="[256,336,1369,1395]" captionStart="FIGURE 11" captionStartId="38.[151,250,1155,1179]" captionTargetBox="[159,1427,243,1125]" captionTargetId="figure-53@38.[151,1436,237,1132]" captionTargetPageId="38" captionText="FIGURE 11. Distribution of diploid and fundamental number of karyotyped specimens of genus Nectomys. (ê) N. apicalis; (■) N. m. grandis; (l) N. palmipes; (○) N. rattus; (▲) N. squamipes." figureDoi="http://doi.org/10.5281/zenodo.4423643" httpUri="https://zenodo.org/record/4423643/files/figure.png" pageId="39" pageNumber="40">Fig. 11</figureCitation>
|
|
), however, without any further description. C-banding metaphases exhibited blocks of constitutive heterochromatin on the pericentromeric region of all autosomes. The X chromosome presented a large variability on the amount and distribution of heterochromatin that encompass the pericentromeric region, the entirely short arm, and sometimes a lightly band on its long arm. The Y chromosome presented a large variability on the amount and distribution of heterochromatin that encompass the pericentromeric region, the distal portion of the long arm, the whole long arm and a large part of the short arm. C-banding of B chromosome presented different patterns on the distribution of heterochromatin: entirely heterochromatic, the long arm entirely heterochromatic, or a heterochromatic block on the end of the long arm (
|
|
<bibRefCitation id="EF9D4B0A3218FFF28130F9932F2CF9A9" author="Maia, V. & Yonenaga-Yassuda, Y. & Freitas, T. R. O. & Kasahara, S. & Sune-Mattevi, M. & Oliveira, L. F. & Galindo, M. A. & Sbalqueiro, I. J." box="[590,775,1620,1647]" pageId="39" pageNumber="40" pagination="121 - 128" refId="ref68942" refString="Maia, V., Yonenaga-Yassuda, Y., Freitas, T. R. O., Kasahara, S., Sune-Mattevi, M., Oliveira, L. F., Galindo, M. A. & Sbalqueiro, I. J. (1984) Supernumerary chromosomes, Robertsonian rearrangement and variability of the sex chromosomes in Nectomys squamipes (Cricetidae, Rodentia). Genetica, 63 (2), 121 - 128. https: // doi. org / 10.1007 / BF 00605896" type="journal article" year="1984">
|
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Maia
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<emphasis id="B978EAE93218FFF281EEF9922EEBF9A9" box="[656,704,1620,1646]" italics="true" pageId="39" pageNumber="40">et al</emphasis>
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. 1984
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</bibRefCitation>
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;
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<bibRefCitation id="EF9D4B0A3218FFF2806FF9932848F9A9" author="Yonenaga-Yassuda, Y. & Maia, V & L'Abbate, M." box="[785,1123,1620,1647]" pageId="39" pageNumber="40" pagination="25 - 39" refId="ref76255" refString="Yonenaga-Yassuda, Y., Maia, V, & L'Abbate, M. (1988) Two tandem fusions and supernumerary chromosomes in Nectomys squamipes (Cricetidae, Rodentia). Caryologia, 41 (1), 25 - 39. https: // doi. org / 10.1080 / 00087114.1988.10797845" type="journal article" year="1988">
|
|
Yonenaga-Yassuda
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<emphasis id="B978EAE93218FFF28095F9922830F9A9" box="[1003,1051,1620,1646]" italics="true" pageId="39" pageNumber="40">et al</emphasis>
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. 1988
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</bibRefCitation>
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;
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<bibRefCitation id="EF9D4B0A3218FFF28710F9932CF4F955" author="Silva, M. J. J. & Yonenaga-Yassuda, Y." pageId="39" pageNumber="40" pagination="455 - 462" refId="ref73412" refString="Silva, M. J. J. & Yonenaga-Yassuda, Y. (1998 a) Heterogeneity and meiotic behaviour of B and sex chromosomes, banding patterns and localization of (TTAGGG) n sequences by fluorescence in situ hybridization in the neotropical water rat Nectomys (Rodentia, Cricetidae). Chromosome Research, 6, 455 - 462. https: // doi. org / 10.1023 / A: 1009248311530" type="journal article" year="1998">Silva & Yonenaga-Yassuda 1998a</bibRefCitation>
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;
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<bibRefCitation id="EF9D4B0A3218FFF28392F9BF2E37F954" author="Gatto-Almeida, F. & Pontes, J. S. & Sbalqueiro, I. J. & Hass, I. & Tiepolo, L. M. & Quadros, J." box="[236,540,1656,1683]" pageId="39" pageNumber="40" pagination="69 - 96" refId="ref67163" refString="Gatto-Almeida, F., Pontes, J. S., Sbalqueiro, I. J., Hass, I., Tiepolo, L. M. & Quadros, J. (2016) Diversidade, biogeografia, caracterizacao cariotipica e tricologica dos pequenos mamiferos nao voadores do Parque Estadual Rio da Onca, Litoral Sul do Parana. Papeis avulsos de zoologia, 56 (7), 69 - 96. https: // doi. org / 10.11606 / 0031 - 1049.2016.56.07" type="journal article" year="2016">
|
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Gatto-Almeida
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<emphasis id="B978EAE93218FFF282E3F9BE2DFBF955" box="[413,464,1656,1682]" italics="true" pageId="39" pageNumber="40">et al</emphasis>
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. 2016
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</bibRefCitation>
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). G- and R-banding were also performed (
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<bibRefCitation id="EF9D4B0A3218FFF2877EF9BF28E1F955" author="Baker, R. J. & Koop, B. F. & Haiduk, M. W." box="[1024,1226,1656,1683]" pageId="39" pageNumber="40" pagination="403 - 416" refId="ref64229" refString="Baker, R. J., Koop, B. F. & Haiduk, M. W. (1983) Resolving systematic relationships with G-bands: a study of five genera of South American Cricetine rodents. Systematic zoology, 32 (4), 403 - 416. https: // doi. org / 10.2307 / 2413167" type="journal article" year="1983">
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Baker
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<emphasis id="B978EAE93218FFF28733F9BE28ABF955" box="[1101,1152,1656,1682]" italics="true" pageId="39" pageNumber="40">et al</emphasis>
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. 1983
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</bibRefCitation>
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;
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<bibRefCitation id="EF9D4B0A3218FFF287A6F9BF29BCF955" author="Maia, V. & Yonenaga-Yassuda, Y. & Freitas, T. R. O. & Kasahara, S. & Sune-Mattevi, M. & Oliveira, L. F. & Galindo, M. A. & Sbalqueiro, I. J." box="[1240,1431,1656,1683]" pageId="39" pageNumber="40" pagination="121 - 128" refId="ref68942" refString="Maia, V., Yonenaga-Yassuda, Y., Freitas, T. R. O., Kasahara, S., Sune-Mattevi, M., Oliveira, L. F., Galindo, M. A. & Sbalqueiro, I. J. (1984) Supernumerary chromosomes, Robertsonian rearrangement and variability of the sex chromosomes in Nectomys squamipes (Cricetidae, Rodentia). Genetica, 63 (2), 121 - 128. https: // doi. org / 10.1007 / BF 00605896" type="journal article" year="1984">
|
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Maia
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<emphasis id="B978EAE93218FFF28664F9BE2966F955" box="[1306,1357,1656,1682]" italics="true" pageId="39" pageNumber="40">et al</emphasis>
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. 1984
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</bibRefCitation>
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;
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<bibRefCitation id="EF9D4B0A3218FFF283E9F95B2DC0F971" author="Yonenaga-Yassuda, Y. & Maia, V & L'Abbate, M." box="[151,491,1692,1719]" pageId="39" pageNumber="40" pagination="25 - 39" refId="ref76255" refString="Yonenaga-Yassuda, Y., Maia, V, & L'Abbate, M. (1988) Two tandem fusions and supernumerary chromosomes in Nectomys squamipes (Cricetidae, Rodentia). Caryologia, 41 (1), 25 - 39. https: // doi. org / 10.1080 / 00087114.1988.10797845" type="journal article" year="1988">
|
|
Yonenaga-Yassuda
|
|
<emphasis id="B978EAE93218FFF2820CF95A2D88F971" box="[370,419,1692,1718]" italics="true" pageId="39" pageNumber="40">et al</emphasis>
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. 1988
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</bibRefCitation>
|
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;
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<bibRefCitation id="EF9D4B0A3218FFF28289F95B2F5DF971" author="Silva, M. J. J. & Yonenaga-Yassuda, Y." box="[503,886,1692,1718]" pageId="39" pageNumber="40" pagination="455 - 462" refId="ref73412" refString="Silva, M. J. J. & Yonenaga-Yassuda, Y. (1998 a) Heterogeneity and meiotic behaviour of B and sex chromosomes, banding patterns and localization of (TTAGGG) n sequences by fluorescence in situ hybridization in the neotropical water rat Nectomys (Rodentia, Cricetidae). Chromosome Research, 6, 455 - 462. https: // doi. org / 10.1023 / A: 1009248311530" type="journal article" year="1998">Silva & Yonenaga-Yassuda 1998a</bibRefCitation>
|
|
). Multiple NORs, varying from four to nine were localized at the telomeric regions of the short arms of small acrocentric pairs (
|
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<bibRefCitation id="EF9D4B0A3218FFF28089F9072966F91D" author="Yonenaga-Yassuda, Y. & Maia, V & L'Abbate, M." box="[1015,1357,1728,1755]" pageId="39" pageNumber="40" pagination="25 - 39" refId="ref76255" refString="Yonenaga-Yassuda, Y., Maia, V, & L'Abbate, M. (1988) Two tandem fusions and supernumerary chromosomes in Nectomys squamipes (Cricetidae, Rodentia). Caryologia, 41 (1), 25 - 39. https: // doi. org / 10.1080 / 00087114.1988.10797845" type="journal article" year="1988">
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Yonenaga-Yassuda
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<emphasis id="B978EAE93218FFF287ADF906292FF91D" box="[1235,1284,1728,1754]" italics="true" pageId="39" pageNumber="40">et al</emphasis>
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. 1988
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</bibRefCitation>
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). FISH with telomeric sequences revealed signals at the ends of all chromosome arms, and additional telomeric sequences were found on the proximal region of the long arm of submetacentric B chromosome (
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<bibRefCitation id="EF9D4B0A3218FFF28717F8CF2CCBF881" author="Silva, M. J. J. & Yonenaga-Yassuda, Y." pageId="39" pageNumber="40" pagination="455 - 462" refId="ref73412" refString="Silva, M. J. J. & Yonenaga-Yassuda, Y. (1998 a) Heterogeneity and meiotic behaviour of B and sex chromosomes, banding patterns and localization of (TTAGGG) n sequences by fluorescence in situ hybridization in the neotropical water rat Nectomys (Rodentia, Cricetidae). Chromosome Research, 6, 455 - 462. https: // doi. org / 10.1023 / A: 1009248311530" type="journal article" year="1998">Silva & Yonenaga-Yassuda 1998a</bibRefCitation>
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).
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</paragraph>
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</subSubSection>
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<subSubSection id="C31665703218FFF283B9F8972F7EF83D" pageId="39" pageNumber="40" type="description">
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<paragraph id="8BB336FB3218FFF283B9F8972F7EF83D" blockId="39.[151,1437,794,2042]" pageId="39" pageNumber="40">
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The species
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<taxonomicName id="4C0C4D783218FFF28231F8962D9BF8AD" baseAuthorityName="Pelzeln" baseAuthorityYear="1883" box="[335,432,1873,1898]" class="Mammalia" family="Muridae" genus="Nectomys" kingdom="Animalia" order="Rodentia" pageId="39" pageNumber="40" phylum="Chordata" rank="species" species="rattus">
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<emphasis id="B978EAE93218FFF28231F8962D9BF8AD" box="[335,432,1873,1898]" italics="true" pageId="39" pageNumber="40">N. rattus</emphasis>
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</taxonomicName>
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and
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<taxonomicName id="4C0C4D783218FFF2829AF8962E51F8AD" baseAuthorityName="Brants" baseAuthorityYear="1827" box="[484,634,1873,1898]" class="Mammalia" family="Muridae" genus="Nectomys" kingdom="Animalia" order="Rodentia" pageId="39" pageNumber="40" phylum="Chordata" rank="species" species="squamipes">
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<emphasis id="B978EAE93218FFF2829AF8962E51F8AD" box="[484,634,1873,1898]" italics="true" pageId="39" pageNumber="40">N. squamipes</emphasis>
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</taxonomicName>
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with the basic karyotype (2n = 52 and 2n = 56, respectively) were raised in captivity for crossed breeding. Cytologic and histologic analyses of the hybrid meiosis showed that the rearrangements between these two karyotypes represented a drastic reproductive barrier (
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<bibRefCitation id="EF9D4B0A3218FFF28767F85F293FF874" author="Bonvicino, C. R. & D'Andrea, P. S. & Cerqueira, R. & Seuanez, H. N." box="[1049,1300,1944,1971]" pageId="39" pageNumber="40" pagination="190 - 193" refId="ref64684" refString="Bonvicino, C. R., D'Andrea, P. S., Cerqueira, R. & Seuanez, H. N. (1996) The chromosomes of Nectomys (Rodentia, Cricetidae) with 2 n = 52, 2 n = 56, and interspecific hybrids (2 n = 54). Cytogenetics and cell genetics, 73, 190 - 193. https: // doi. org / 10.1159 / 000134337" type="journal article" year="1996">
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Bonvicino
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<emphasis id="B978EAE93218FFF287E9F85E28E2F875" box="[1175,1225,1944,1970]" italics="true" pageId="39" pageNumber="40">et al</emphasis>
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. 1996
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</bibRefCitation>
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). According to Yonenaga-Yassuda
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<emphasis id="B978EAE93218FFF282F3F87A2D96F811" box="[397,445,1980,2006]" italics="true" pageId="39" pageNumber="40">et al</emphasis>
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. (1998) based on the G-banding pattern, two tandem fusions have been recognized as the mechanism involved in the differentiation of these karyotypes.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |