Systematic rearrangements in an all-genus phylogeny of side-gilled slugs (Heterobranchia: Pleurobranchida)
Abstract The systematics of side-gilled slugs face long-lasting incongruencies provided by morphological and molecular data. Parsimonious morphological assessments divided the single superfamily Pleurobranchoidea into the shell-less Pleurobranchaeidae and the internally shelled Pleurobranchidae, inc...
Published in: | Zoological Journal of the Linnean Society |
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2023
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Online Access: | http://dx.doi.org/10.1093/zoolinnean/zlad162 https://academic.oup.com/zoolinnean/advance-article-pdf/doi/10.1093/zoolinnean/zlad162/54876679/zlad162.pdf |
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croxfordunivpr:10.1093/zoolinnean/zlad162 2024-04-07T07:48:09+00:00 Systematic rearrangements in an all-genus phylogeny of side-gilled slugs (Heterobranchia: Pleurobranchida) Moles, Juan Brenzinger, Bastian Berning, Maria I Martynov, Alexander Korshunova, Tatiana Schrödl, Michael Alexander von Humboldt Foundation 2023 http://dx.doi.org/10.1093/zoolinnean/zlad162 https://academic.oup.com/zoolinnean/advance-article-pdf/doi/10.1093/zoolinnean/zlad162/54876679/zlad162.pdf en eng Oxford University Press (OUP) https://academic.oup.com/pages/standard-publication-reuse-rights Zoological Journal of the Linnean Society ISSN 0024-4082 1096-3642 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2023 croxfordunivpr https://doi.org/10.1093/zoolinnean/zlad162 2024-03-08T03:04:12Z Abstract The systematics of side-gilled slugs face long-lasting incongruencies provided by morphological and molecular data. Parsimonious morphological assessments divided the single superfamily Pleurobranchoidea into the shell-less Pleurobranchaeidae and the internally shelled Pleurobranchidae, including the aberrant helicoid-shelled Tomthompsonia. Molecular evidence has proven untrustworthy to date, revealing contrasting hypotheses. This study’s multilocus phylogeny benefits from a dense taxon sampling of 94 pleurobranchids, with 22 newly sequenced specimens, including type species for all known genera. We further evaluate the effects of masking with several algorithms to better enhance phylogenetic resolution. Our results support that Tomthompsonioidea superfam. nov. are the sister group of all other Pleurobranchida; the absence of an acidic oral gland and a helicoid shell are the diagnostic features. We also provide the first molecular evidence that Euselenops nests within Pleurobranchaeidae, and Pleurobranchella is related to Pleurobranchaea, but remains distinct morphologically. Regarding Pleurobranchidae, the genus Berthella is paraphyletic and now embodied in the four clades: Berthella s.s., Boreoberthella, Pleurehdera, and Tomoberthella gen. nov. The fact that, whereas there is a supposed low Antarctic diversity, we find hidden speciation in several tropical species suggests that side-gilled slugs pose an Antarctic origin or a relic that radiated in shallower, warmer waters. Article in Journal/Newspaper Antarc* Antarctic Oxford University Press Antarctic Zoological Journal of the Linnean Society |
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Oxford University Press |
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croxfordunivpr |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
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Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Moles, Juan Brenzinger, Bastian Berning, Maria I Martynov, Alexander Korshunova, Tatiana Schrödl, Michael Systematic rearrangements in an all-genus phylogeny of side-gilled slugs (Heterobranchia: Pleurobranchida) |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Abstract The systematics of side-gilled slugs face long-lasting incongruencies provided by morphological and molecular data. Parsimonious morphological assessments divided the single superfamily Pleurobranchoidea into the shell-less Pleurobranchaeidae and the internally shelled Pleurobranchidae, including the aberrant helicoid-shelled Tomthompsonia. Molecular evidence has proven untrustworthy to date, revealing contrasting hypotheses. This study’s multilocus phylogeny benefits from a dense taxon sampling of 94 pleurobranchids, with 22 newly sequenced specimens, including type species for all known genera. We further evaluate the effects of masking with several algorithms to better enhance phylogenetic resolution. Our results support that Tomthompsonioidea superfam. nov. are the sister group of all other Pleurobranchida; the absence of an acidic oral gland and a helicoid shell are the diagnostic features. We also provide the first molecular evidence that Euselenops nests within Pleurobranchaeidae, and Pleurobranchella is related to Pleurobranchaea, but remains distinct morphologically. Regarding Pleurobranchidae, the genus Berthella is paraphyletic and now embodied in the four clades: Berthella s.s., Boreoberthella, Pleurehdera, and Tomoberthella gen. nov. The fact that, whereas there is a supposed low Antarctic diversity, we find hidden speciation in several tropical species suggests that side-gilled slugs pose an Antarctic origin or a relic that radiated in shallower, warmer waters. |
author2 |
Alexander von Humboldt Foundation |
format |
Article in Journal/Newspaper |
author |
Moles, Juan Brenzinger, Bastian Berning, Maria I Martynov, Alexander Korshunova, Tatiana Schrödl, Michael |
author_facet |
Moles, Juan Brenzinger, Bastian Berning, Maria I Martynov, Alexander Korshunova, Tatiana Schrödl, Michael |
author_sort |
Moles, Juan |
title |
Systematic rearrangements in an all-genus phylogeny of side-gilled slugs (Heterobranchia: Pleurobranchida) |
title_short |
Systematic rearrangements in an all-genus phylogeny of side-gilled slugs (Heterobranchia: Pleurobranchida) |
title_full |
Systematic rearrangements in an all-genus phylogeny of side-gilled slugs (Heterobranchia: Pleurobranchida) |
title_fullStr |
Systematic rearrangements in an all-genus phylogeny of side-gilled slugs (Heterobranchia: Pleurobranchida) |
title_full_unstemmed |
Systematic rearrangements in an all-genus phylogeny of side-gilled slugs (Heterobranchia: Pleurobranchida) |
title_sort |
systematic rearrangements in an all-genus phylogeny of side-gilled slugs (heterobranchia: pleurobranchida) |
publisher |
Oxford University Press (OUP) |
publishDate |
2023 |
url |
http://dx.doi.org/10.1093/zoolinnean/zlad162 https://academic.oup.com/zoolinnean/advance-article-pdf/doi/10.1093/zoolinnean/zlad162/54876679/zlad162.pdf |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Zoological Journal of the Linnean Society ISSN 0024-4082 1096-3642 |
op_rights |
https://academic.oup.com/pages/standard-publication-reuse-rights |
op_doi |
https://doi.org/10.1093/zoolinnean/zlad162 |
container_title |
Zoological Journal of the Linnean Society |
_version_ |
1795662022426230784 |