Morphology disentangles the systematics of a ubiquitous but elusive meiofaunal group (Kinorhyncha: Pycnophyidae)
Abstract Kinorhyncha is a group of benthic, microscopic animals distributed worldwide in marine sediments. The phylum is divided into two classes, Cyclorhagida and Allomalorhagida, congruent with the two major clades recovered in recent phylogenetic analyses. Allomalorhagida accommodates more than o...
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crwiley:10.1111/cla.12143 2024-10-06T13:46:39+00:00 Morphology disentangles the systematics of a ubiquitous but elusive meiofaunal group (Kinorhyncha: Pycnophyidae) Sánchez, Nuria Yamasaki, Hiroshi Pardos, Fernando Sørensen, Martin V. Martínez, Alejandro Ministerio de Ciencia y Tecnología Seventh Framework Programme Carlsbergfondet 2016 http://dx.doi.org/10.1111/cla.12143 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fcla.12143 https://onlinelibrary.wiley.com/doi/pdf/10.1111/cla.12143 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Cladistics volume 32, issue 5, page 479-505 ISSN 0748-3007 1096-0031 journal-article 2016 crwiley https://doi.org/10.1111/cla.12143 2024-09-11T04:11:35Z Abstract Kinorhyncha is a group of benthic, microscopic animals distributed worldwide in marine sediments. The phylum is divided into two classes, Cyclorhagida and Allomalorhagida, congruent with the two major clades recovered in recent phylogenetic analyses. Allomalorhagida accommodates more than one‐third of the described species, most of them assigned to the family Pycnophyidae. All previous phylogenetic analyses of the phylum recovered the two genera within Pycnophyidae, Pycnophyes and Kinorhynchus , as paraphyletic and polyphyletic. A major problem in these studies was the lack of molecular data of most pycnophyids, due to the limited and highly localized distribution of most species, often in the Arctic and the deep‐sea. We here overcame the problem by adding a morphological partition with data for 79 Pycnophyidae species, 15 of them also represented by molecular data. Model‐based analyses yielded seven clades, which each was supported by several morphological apomorphies. Accordingly, Kinorhynchus is synonymized with Pycnophyes and six new genera are described for the remaining recovered clades: Leiocanthus gen. nov., Cristaphyes gen. nov., Higginsium gen. nov., Krakenella gen. nov., Setaphyes gen. nov. and Fujuriphyes gen. nov. Article in Journal/Newspaper Arctic Wiley Online Library Arctic Cladistics 32 5 479 505 |
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Wiley Online Library |
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English |
description |
Abstract Kinorhyncha is a group of benthic, microscopic animals distributed worldwide in marine sediments. The phylum is divided into two classes, Cyclorhagida and Allomalorhagida, congruent with the two major clades recovered in recent phylogenetic analyses. Allomalorhagida accommodates more than one‐third of the described species, most of them assigned to the family Pycnophyidae. All previous phylogenetic analyses of the phylum recovered the two genera within Pycnophyidae, Pycnophyes and Kinorhynchus , as paraphyletic and polyphyletic. A major problem in these studies was the lack of molecular data of most pycnophyids, due to the limited and highly localized distribution of most species, often in the Arctic and the deep‐sea. We here overcame the problem by adding a morphological partition with data for 79 Pycnophyidae species, 15 of them also represented by molecular data. Model‐based analyses yielded seven clades, which each was supported by several morphological apomorphies. Accordingly, Kinorhynchus is synonymized with Pycnophyes and six new genera are described for the remaining recovered clades: Leiocanthus gen. nov., Cristaphyes gen. nov., Higginsium gen. nov., Krakenella gen. nov., Setaphyes gen. nov. and Fujuriphyes gen. nov. |
author2 |
Ministerio de Ciencia y Tecnología Seventh Framework Programme Carlsbergfondet |
format |
Article in Journal/Newspaper |
author |
Sánchez, Nuria Yamasaki, Hiroshi Pardos, Fernando Sørensen, Martin V. Martínez, Alejandro |
spellingShingle |
Sánchez, Nuria Yamasaki, Hiroshi Pardos, Fernando Sørensen, Martin V. Martínez, Alejandro Morphology disentangles the systematics of a ubiquitous but elusive meiofaunal group (Kinorhyncha: Pycnophyidae) |
author_facet |
Sánchez, Nuria Yamasaki, Hiroshi Pardos, Fernando Sørensen, Martin V. Martínez, Alejandro |
author_sort |
Sánchez, Nuria |
title |
Morphology disentangles the systematics of a ubiquitous but elusive meiofaunal group (Kinorhyncha: Pycnophyidae) |
title_short |
Morphology disentangles the systematics of a ubiquitous but elusive meiofaunal group (Kinorhyncha: Pycnophyidae) |
title_full |
Morphology disentangles the systematics of a ubiquitous but elusive meiofaunal group (Kinorhyncha: Pycnophyidae) |
title_fullStr |
Morphology disentangles the systematics of a ubiquitous but elusive meiofaunal group (Kinorhyncha: Pycnophyidae) |
title_full_unstemmed |
Morphology disentangles the systematics of a ubiquitous but elusive meiofaunal group (Kinorhyncha: Pycnophyidae) |
title_sort |
morphology disentangles the systematics of a ubiquitous but elusive meiofaunal group (kinorhyncha: pycnophyidae) |
publisher |
Wiley |
publishDate |
2016 |
url |
http://dx.doi.org/10.1111/cla.12143 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fcla.12143 https://onlinelibrary.wiley.com/doi/pdf/10.1111/cla.12143 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Cladistics volume 32, issue 5, page 479-505 ISSN 0748-3007 1096-0031 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/cla.12143 |
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Cladistics |
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32 |
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5 |
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479 |
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505 |
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1812174954997743616 |