Biogeography and phylogenetic position of Enchodeloides signyensis (Loof, 1975), gen. n., comb. n. from Maritime Antarctic (Nematoda, Nordiidae)
The taxonomic position of the endemic Antarctic species Enchodeloides signyensis (Loof, 1975), gen. n., comb. n. (= Enchodelus signyensis Loof, 1975) is discussed on the basis of morphological study, including SEM, morphometric data, postembryonic observations, and sequence data of 18S rDNA and the...
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ftpubmed:oai:pubmedcentral.nih.gov:5673849 2023-05-15T13:38:04+02:00 Biogeography and phylogenetic position of Enchodeloides signyensis (Loof, 1975), gen. n., comb. n. from Maritime Antarctic (Nematoda, Nordiidae) Elshishka, Milka Lazarova, Stela Radoslavov, Georgi Hristov, Peter Peneva, Vlada K. 2017-09-14 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5673849/ http://www.ncbi.nlm.nih.gov/pubmed/29134015 https://doi.org/10.3897/zookeys.697.13770 en eng Pensoft Publishers http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5673849/ http://www.ncbi.nlm.nih.gov/pubmed/29134015 http://dx.doi.org/10.3897/zookeys.697.13770 Milka Elshishka, Stela Lazarova, Georgi Radoslavov, Peter Hristov, Vlada K. Peneva http://creativecommons.org/licenses/by/4.0 This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Research Article Text 2017 ftpubmed https://doi.org/10.3897/zookeys.697.13770 2017-11-19T01:11:28Z The taxonomic position of the endemic Antarctic species Enchodeloides signyensis (Loof, 1975), gen. n., comb. n. (= Enchodelus signyensis Loof, 1975) is discussed on the basis of morphological study, including SEM, morphometric data, postembryonic observations, and sequence data of 18S rDNA and the D2-D3 expansion fragments of the large subunit rDNA. A number of characters such as the cuticle and stoma structures, including the presence of moderately developed cuticularised ring around the oral aperture, peculiarities of pharynx expansion, size and position of the posterior pair of pharyngeal nuclei, a less complex uterus, and the position of a posterior ventromedian supplement show that this species differs substantially from the other members of the genus Enchodelus. Furthermore, both the 18S and 28S rDNA-based phylogenetic trees of the Enchodelus sequences available in the GenBank formed two distinct clusters with E. signyensis being a part of a well-supported group with species of the genus Pungentus; therefore, it is proposed that its taxonomic position should be reconsidered. Text Antarc* Antarctic PubMed Central (PMC) Antarctic ZooKeys 697 37 58 |
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Research Article Elshishka, Milka Lazarova, Stela Radoslavov, Georgi Hristov, Peter Peneva, Vlada K. Biogeography and phylogenetic position of Enchodeloides signyensis (Loof, 1975), gen. n., comb. n. from Maritime Antarctic (Nematoda, Nordiidae) |
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Research Article |
description |
The taxonomic position of the endemic Antarctic species Enchodeloides signyensis (Loof, 1975), gen. n., comb. n. (= Enchodelus signyensis Loof, 1975) is discussed on the basis of morphological study, including SEM, morphometric data, postembryonic observations, and sequence data of 18S rDNA and the D2-D3 expansion fragments of the large subunit rDNA. A number of characters such as the cuticle and stoma structures, including the presence of moderately developed cuticularised ring around the oral aperture, peculiarities of pharynx expansion, size and position of the posterior pair of pharyngeal nuclei, a less complex uterus, and the position of a posterior ventromedian supplement show that this species differs substantially from the other members of the genus Enchodelus. Furthermore, both the 18S and 28S rDNA-based phylogenetic trees of the Enchodelus sequences available in the GenBank formed two distinct clusters with E. signyensis being a part of a well-supported group with species of the genus Pungentus; therefore, it is proposed that its taxonomic position should be reconsidered. |
format |
Text |
author |
Elshishka, Milka Lazarova, Stela Radoslavov, Georgi Hristov, Peter Peneva, Vlada K. |
author_facet |
Elshishka, Milka Lazarova, Stela Radoslavov, Georgi Hristov, Peter Peneva, Vlada K. |
author_sort |
Elshishka, Milka |
title |
Biogeography and phylogenetic position of Enchodeloides signyensis (Loof, 1975), gen. n., comb. n. from Maritime Antarctic (Nematoda, Nordiidae) |
title_short |
Biogeography and phylogenetic position of Enchodeloides signyensis (Loof, 1975), gen. n., comb. n. from Maritime Antarctic (Nematoda, Nordiidae) |
title_full |
Biogeography and phylogenetic position of Enchodeloides signyensis (Loof, 1975), gen. n., comb. n. from Maritime Antarctic (Nematoda, Nordiidae) |
title_fullStr |
Biogeography and phylogenetic position of Enchodeloides signyensis (Loof, 1975), gen. n., comb. n. from Maritime Antarctic (Nematoda, Nordiidae) |
title_full_unstemmed |
Biogeography and phylogenetic position of Enchodeloides signyensis (Loof, 1975), gen. n., comb. n. from Maritime Antarctic (Nematoda, Nordiidae) |
title_sort |
biogeography and phylogenetic position of enchodeloides signyensis (loof, 1975), gen. n., comb. n. from maritime antarctic (nematoda, nordiidae) |
publisher |
Pensoft Publishers |
publishDate |
2017 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5673849/ http://www.ncbi.nlm.nih.gov/pubmed/29134015 https://doi.org/10.3897/zookeys.697.13770 |
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Antarctic |
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Antarctic |
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5673849/ http://www.ncbi.nlm.nih.gov/pubmed/29134015 http://dx.doi.org/10.3897/zookeys.697.13770 |
op_rights |
Milka Elshishka, Stela Lazarova, Georgi Radoslavov, Peter Hristov, Vlada K. Peneva http://creativecommons.org/licenses/by/4.0 This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3897/zookeys.697.13770 |
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ZooKeys |
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697 |
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37 |
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1766101105262985216 |