176 lines
16 KiB
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176 lines
16 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.73.839" ID-GBIF-Dataset="7378beda-da10-477a-9dd4-b8211d8f6e71" ID-PMC="PMC3088458" ID-Pensoft-Pub="1313-2970-73-13" ID-PubMed="21594050" ModsDocAuthor="" ModsDocDate="2010" ModsDocID="1313-2970-73-13" ModsDocOrigin="ZooKeys 73" ModsDocTitle="Generic switch-over during ontogenesis in Dimorphacanthella gen. n. (Collembola, Isotomidae) with barcoding evidence" checkinTime="1451250857622" checkinUser="pensoft" docAuthor="Potapov, Mikhail B., Bu, Yun, Huang, Cheng-Wang, Gao, Yan & Luan, Yun-Xia" docDate="2010" docId="28A364F756EC2560D747DA8E9B0D67C4" docLanguage="en" docName="ZooKeys 73: 13-23" docOrigin="ZooKeys 73" docSource="http://dx.doi.org/10.3897/zookeys.73.839" docTitle="Dimorphacanthella Potapov, Bu, Huang, Gao & Luan, 2010, gen. n." docType="treatment" docVersion="6" lastPageNumber="15" masterDocId="4B70FFC0FFA3163DFFBCFFDB8C299020" masterDocTitle="Generic switch-over during ontogenesis in Dimorphacanthella gen. n. (Collembola, Isotomidae) with barcoding evidence" masterLastPageNumber="23" masterPageNumber="13" pageNumber="13" updateTime="1668165356793" updateUser="ExternalLinkService">
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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>Generic switch-over during ontogenesis in Dimorphacanthella gen. n. (Collembola, Isotomidae) with barcoding evidence</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:role>
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<mods:namePart>Potapov, Mikhail B.</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:role>
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<mods:namePart>Bu, Yun</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:role>
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<mods:namePart>Huang, Cheng-Wang</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:role>
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<mods:namePart>Gao, Yan</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:role>
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<mods:namePart>Luan, Yun-Xia</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>ZooKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2010</mods:date>
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<mods:detail type="volume">
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<mods:number>73</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>13</mods:start>
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<mods:end>23</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/zookeys.73.839</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">http://dx.doi.org/10.3897/zookeys.73.839</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-73-13</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="159360957" LSID="urn:lsid:zoobank.org:act:EFBFAE0B-EC1C-4F41-90A8-6CAFC06CA6CC" httpUri="http://treatment.plazi.org/id/28A364F756EC2560D747DA8E9B0D67C4" lastPageId="2" lastPageNumber="15" pageId="0" pageNumber="13">
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<subSubSection pageId="0" pageNumber="13" type="nomenclature">
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<paragraph pageId="0" pageNumber="13">
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<taxonomicName LSID="urn:lsid:zoobank.org:act:EFBFAE0B-EC1C-4F41-90A8-6CAFC06CA6CC" class="Collembola" family="Isotomidae" genus="Dimorphacanthella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dimorphacanthella" order="Entomobryomorpha" pageId="0" pageNumber="13" phylum="Arthropoda" rank="genus">Dimorphacanthella</taxonomicName>
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<taxonomicNameLabel pageId="0" pageNumber="13">gen. n.</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="13" type="description">
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<paragraph pageId="0" pageNumber="13">Description.</paragraph>
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<paragraph pageId="0" pageNumber="13">
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Ocelli and pigment absent. Abd. V and Abd. VI fused. Integument regularly and slightly reticulated, without pits. Middle-sized and large individuals with four anal spines set in one transversal row on posterior edge of Abd. V (Figs 1, 10), small juveniles with only two inner anal spines on Abd. V (Fig. 2) (unexamined small juveniles for
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<taxonomicName class="Collembola" family="Isotomidae" genus="Dimorphacanthella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dimorphacanthella mediaseta" order="Entomobryomorpha" pageId="0" pageNumber="13" phylum="Arthropoda" rank="species" species="mediaseta">Dimorphacanthella mediaseta</taxonomicName>
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). Inner anal spines of all age stages derived from p1-setae. Setae a1 and p2 not modified to spines. Maxillary outer lobe with simple palp and 4 sublobal hairs. Prelabrum with 2 setae. In two known species labial palp lost five guards on papillae B, D, and E. Body chaetotaxy oligochaetotic. Unpaired median seta (p0) present on Abd. IV. Papilla of inner anal spine is supplied with a seta on dorsal side (absent in small juveniles). Macrosetae well differentiated, macrochaetotaxy of Th. II-Abd. III 1,1/2
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<normalizedToken originalValue="–3,2–3,2–">-3,2-3,2-</normalizedToken>
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3. Sensilla well differentiated, 2,1/1,1,1,2,4 (s) and 1,0/0,0,1 (ms) in number. Empodial appendage present, furca absent.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="0" pageNumber="13" type="distribution">
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<paragraph pageId="0" pageNumber="13">Distribution:</paragraph>
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<paragraph pageId="0" pageNumber="13">China (Shanghai, Ningxia).</paragraph>
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</subSubSection>
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<subSubSection pageId="1" pageNumber="14" type="type species">
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<paragraph pageId="1" pageNumber="14">
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<pageBreakToken pageId="1" pageNumber="14" start="start">Type</pageBreakToken>
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species:
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</paragraph>
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<paragraph pageId="1" pageNumber="14">
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<taxonomicName class="Collembola" family="Isotomidae" genus="Dimorphacanthella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dimorphacanthella anommatos" order="Entomobryomorpha" pageId="1" pageNumber="14" phylum="Arthropoda" rank="species" species="anommatos">Dimorphacanthella anommatos</taxonomicName>
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(Chen & Yin), 1984, comb. n.
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="2" lastPageNumber="15" pageId="1" pageNumber="14" type="remarks">
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<paragraph pageId="1" pageNumber="14">Remarks:</paragraph>
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<paragraph pageId="1" pageNumber="14">
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Sharing four anal spines on genital segment, the new genus
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<taxonomicName class="Collembola" family="Isotomidae" genus="Dimorphacanthella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dimorphacanthella" order="Entomobryomorpha" pageId="1" pageNumber="14" phylum="Arthropoda" rank="genus">Dimorphacanthella</taxonomicName>
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formally resembles three genera namely
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<taxonomicName class="Collembola" family="Isotomidae" genus="Tetracanthella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Tetracanthella" order="Entomobryomorpha" pageId="1" pageNumber="14" phylum="Arthropoda" rank="genus">Tetracanthella</taxonomicName>
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,
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<taxonomicName class="Collembola" family="Isotomidae" genus="Blissia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Blissia" order="Entomobryomorpha" pageId="1" pageNumber="14" phylum="Arthropoda" rank="genus">Blissia</taxonomicName>
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Rusek, 1985 and
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<taxonomicName class="Collembola" family="Isotomidae" genus="Sibiracanthella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Sibiracanthella" order="Entomobryomorpha" pageId="1" pageNumber="14" phylum="Arthropoda" rank="genus">Sibiracanthella</taxonomicName>
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Potapov & Stebaeva, 1995. All four genera also have the same derivation of inner anal spines which are, following the notation of
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<bibRefCitation author="Deharveng, L" journalOrPublisher="Revue d'Ecologie et de Biologie du Sol" pageId="7" pageNumber="20" pagination="551 - 573" title="Contribution a l'etude des Anurophorinae a epines anales (Collembola, Isotomidae)." volume="15" year="1978">Deharveng (1978)</bibRefCitation>
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, p1-setae modified. Outer anal spines derived from p2-setae in
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<taxonomicName class="Collembola" family="Isotomidae" genus="Tetracanthella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Tetracanthella" order="Entomobryomorpha" pageId="1" pageNumber="14" phylum="Arthropoda" rank="genus">Tetracanthella</taxonomicName>
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(Fig. 14) and
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<taxonomicName class="Collembola" family="Isotomidae" genus="Blissia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Blissia" order="Entomobryomorpha" pageId="1" pageNumber="14" phylum="Arthropoda" rank="genus">Blissia</taxonomicName>
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and a1-setae in
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<taxonomicName class="Collembola" family="Isotomidae" genus="Sibiracanthella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Sibiracanthella" order="Entomobryomorpha" pageId="1" pageNumber="14" phylum="Arthropoda" rank="genus">Sibiracanthella</taxonomicName>
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. Outer anal spines of
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<taxonomicName class="Collembola" family="Isotomidae" genus="Dimorphacanthella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dimorphacanthella" order="Entomobryomorpha" pageId="1" pageNumber="14" phylum="Arthropoda" rank="genus">Dimorphacanthella</taxonomicName>
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are modified setae positioned in posterior part of Abd. V and between two macrosetae pp1 and pp2. Since the designation of setae of Abd. V is not developed enough we notate these setae as setae x on the schemes (Fig. 15). Seta x is a ordinary seta in late instars of
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<taxonomicName class="Collembola" family="Isotomidae" genus="Tetracanthella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Tetracanthella" order="Entomobryomorpha" pageId="1" pageNumber="14" phylum="Arthropoda" rank="genus">Tetracanthella</taxonomicName>
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, while in
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<taxonomicName class="Collembola" family="Isotomidae" genus="Dimorphacanthella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dimorphacanthella" order="Entomobryomorpha" pageId="1" pageNumber="14" phylum="Arthropoda" rank="genus">Dimorphacanthella</taxonomicName>
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it is modified to a spine at later instars and absent at early instars (Figs 14-16). Seta p2 which is a lateral spine in
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<taxonomicName class="Collembola" family="Isotomidae" genus="Tetracanthella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Tetracanthella" order="Entomobryomorpha" pageId="1" pageNumber="14" phylum="Arthropoda" rank="genus">Tetracanthella</taxonomicName>
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remains unmodified in
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<taxonomicName class="Collembola" family="Isotomidae" genus="Dimorphacanthella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dimorphacanthella" order="Entomobryomorpha" pageId="1" pageNumber="14" phylum="Arthropoda" rank="genus">Dimorphacanthella</taxonomicName>
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and is located anterior to and between sensilla s1 and s2. The new genus has a pair of ordinary setae in front of median spines in late instars (notated as m1 seta by us) (Figs 15). These setae were never seen in other genera having spines in p1-position. These and other differentiated characters of genera with four anal spines are presented in Table 1.
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</paragraph>
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<caption ID-Table-UUID="C9859B81E1E06192FCDE944F71E2C055" httpUri="http://table.plazi.org/id/C9859B81E1E06192FCDE944F71E2C055" pageId="1" pageNumber="14">
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<paragraph pageId="1" pageNumber="14">Table 1. Differentiating characters of genera with 4 anal spines on Abd. V and none on Abd. VI</paragraph>
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</caption>
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<paragraph pageId="1" pageNumber="14">
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<table pageId="1" pageNumber="14">
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<tr pageId="1" pageNumber="14">
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<th colspan="1" pageId="1" pageNumber="14" rowspan="1">character</th>
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<th colspan="1" pageId="1" pageNumber="14" rowspan="1">
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<taxonomicName class="Collembola" family="Isotomidae" genus="Tetracanthella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Tetracanthella" order="Entomobryomorpha" pageId="1" pageNumber="14" phylum="Arthropoda" rank="genus">Tetracanthella</taxonomicName>
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</th>
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<th colspan="1" pageId="1" pageNumber="14" rowspan="1">
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<taxonomicName class="Collembola" family="Isotomidae" genus="Blissia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Blissia" order="Entomobryomorpha" pageId="1" pageNumber="14" phylum="Arthropoda" rank="genus">Blissia</taxonomicName>
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</th>
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<th colspan="1" pageId="1" pageNumber="14" rowspan="1">
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<taxonomicName genus="Sibirocanthella" lsidName="Sibirocanthella" pageId="1" pageNumber="14" rank="genus">Sibirocanthella</taxonomicName>
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</th>
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<th colspan="1" pageId="1" pageNumber="14" rowspan="1">
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<taxonomicName genus="Dimorphocanthella" lsidName="Dimorphocanthella" pageId="1" pageNumber="14" rank="genus">Dimorphocanthella</taxonomicName>
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gen. n. (adult)
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</th>
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</tr>
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</table>
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</paragraph>
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<paragraph pageId="1" pageNumber="14">
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Blindness and presence of unpaired seta on Abd. IV are only shared with
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<taxonomicName class="Collembola" family="Isotomidae" genus="Martynovella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Martynovella nana subsp. nana" order="Entomobryomorpha" pageId="1" pageNumber="14" phylum="Arthropoda" rank="subSpecies" species="nana" subSpecies="nana">Martynovella nana nana</taxonomicName>
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(Martynova, 1967) described from Central Asia. This species, however, has two anal spines at all age instars, more complete sensillary set, lacking seta m1 in front of spines, and other less significant differentiating features. Another subspecies,
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<taxonomicName class="Collembola" family="Isotomidae" genus="Martynovella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Martynovella nana subsp. kirgisica" order="Entomobryomorpha" pageId="1" pageNumber="14" phylum="Arthropoda" rank="subSpecies" species="nana" subSpecies="kirgisica">Martynovella nana kirgisica</taxonomicName>
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(Martynova, 1967) has no unpaired seta on Abd. IV.
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</paragraph>
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<paragraph pageId="2" pageNumber="15">
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<pageBreakToken pageId="2" pageNumber="15" start="start">The</pageBreakToken>
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number and homology of real anal spines are of high value in generic taxonomy of
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<taxonomicName lsidName="" pageId="2" pageNumber="15" rank="subFamily" subFamily="Anurophorinae">Anurophorinae</taxonomicName>
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and appeared to be constant in the course of postembryonic ontogenesis (
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<bibRefCitation author="Deharveng, L" journalOrPublisher="Revue d'Ecologie et de Biologie du Sol" pageId="7" pageNumber="20" pagination="551 - 573" title="Contribution a l'etude des Anurophorinae a epines anales (Collembola, Isotomidae)." volume="15" year="1978">Deharveng 1978</bibRefCitation>
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), except epitokous and ecomorphic forms of
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<taxonomicName class="Collembola" family="Isotomidae" genus="Proisotoma" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Proisotoma" order="Entomobryomorpha" pageId="2" pageNumber="15" phylum="Arthropoda" rank="genus">Proisotoma</taxonomicName>
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<normalizedToken originalValue="Börner">Boerner</normalizedToken>
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, 1901 and
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<taxonomicName class="Collembola" family="Isotomidae" genus="Cliforga" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cliforga" order="Entomobryomorpha" pageId="2" pageNumber="15" phylum="Arthropoda" rank="genus">Cliforga</taxonomicName>
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Wray, 1952 (
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<bibRefCitation author="Fjellberg, A" journalOrPublisher="Canadian Journal of Zoology" pageId="7" pageNumber="20" pagination="965 - 967" title="Proisotoma rainieri Folsom, 1937 (= Isotoma kisoana Yosii, 1939) syn. n. An epitokous species of Collembola (Isotomidae)." volume="66" year="1988">Fjellberg 1988</bibRefCitation>
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;
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<bibRefCitation author="Najt, J" journalOrPublisher="Pedobiologia" pageId="7" pageNumber="20" pagination="337 - 348" title="Modifications morphologiques liees a l'ecomorphose chez les collemboles Isotomidae." volume="25" year="1983">Najt 1983</bibRefCitation>
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). In the family,
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<taxonomicName class="Collembola" family="Isotomidae" genus="Dimorphacanthella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Dimorphacanthella anommatos" order="Entomobryomorpha" pageId="2" pageNumber="15" phylum="Arthropoda" rank="species" species="anommatos">Dimorphacanthella anommatos</taxonomicName>
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is the only case where the real anal spines on high papillae appear after moulting.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="2" pageNumber="15" type="etymology">
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<paragraph pageId="2" pageNumber="15">Etymology:</paragraph>
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<paragraph pageId="2" pageNumber="15">The name of the new genus refers two morphs, juvenile and adult, having different number of anal spines in at least one species of the genus.</paragraph>
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</subSubSection>
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</treatment>
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</document> |