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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ftpensoft:10.3897/zookeys.697.13770 2023-05-15T14:01:27+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 2017 text/html https://doi.org/10.3897/zookeys.697.13770 https://zookeys.pensoft.net/article/13770/ en eng Pensoft Publishers info:eu-repo/semantics/altIdentifier/eissn/1313-2970 info:eu-repo/semantics/altIdentifier/pissn/1313-2989 info:eu-repo/semantics/openAccess ZooKeys 697: 37-58 Distribution morphology SEM SNPs taxonomy 18S and D2-D3 rDNA Research Article 2017 ftpensoft https://doi.org/10.3897/zookeys.697.13770 2022-03-01T12:35:23Z 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. Article in Journal/Newspaper Antarc* Antarctic Pensoft Publishers Antarctic ZooKeys 697 37 58 |
institution |
Open Polar |
collection |
Pensoft Publishers |
op_collection_id |
ftpensoft |
language |
English |
topic |
Distribution morphology SEM SNPs taxonomy 18S and D2-D3 rDNA |
spellingShingle |
Distribution morphology SEM SNPs taxonomy 18S and D2-D3 rDNA Elshishka,Milka Lazarova,Stela Radoslavov,Georgi Hristov,Peter Peneva,Vlada Biogeography and phylogenetic position of Enchodeloides signyensis (Loof, 1975), gen. n., comb. n. from Maritime Antarctic (Nematoda, Nordiidae) |
topic_facet |
Distribution morphology SEM SNPs taxonomy 18S and D2-D3 rDNA |
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 |
Article in Journal/Newspaper |
author |
Elshishka,Milka Lazarova,Stela Radoslavov,Georgi Hristov,Peter Peneva,Vlada |
author_facet |
Elshishka,Milka Lazarova,Stela Radoslavov,Georgi Hristov,Peter Peneva,Vlada |
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 |
https://doi.org/10.3897/zookeys.697.13770 https://zookeys.pensoft.net/article/13770/ |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
ZooKeys 697: 37-58 |
op_relation |
info:eu-repo/semantics/altIdentifier/eissn/1313-2970 info:eu-repo/semantics/altIdentifier/pissn/1313-2989 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3897/zookeys.697.13770 |
container_title |
ZooKeys |
container_volume |
697 |
container_start_page |
37 |
op_container_end_page |
58 |
_version_ |
1766271290369376256 |