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Phylogenomics reveals deep relationships and diversification within phylactolaemate bryozoans

Bryozoans are mostly sessile colonial invertebrates that inhabit all kinds of aquatic ecosystems. Extant bryozoan species fall into two clades with one of them, Phylactolaemata, being the only exclusively freshwater clade. Phylogenetic relationships within the class Phylactolaemata have long been co...

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Autores principales: Saadi, Ahmed J., Bibermair, Julian, Kocot, Kevin M., Roberts, Nickellaus G., Hirose, Masato, Calcino, Andrew, Baranyi, Christian, Chaichana, Ratcha, Wood, Timothy S., Schwaha, Thomas
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9653232/
https://www.ncbi.nlm.nih.gov/pubmed/36350215
http://dx.doi.org/10.1098/rspb.2022.1504
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author Saadi, Ahmed J.
Bibermair, Julian
Kocot, Kevin M.
Roberts, Nickellaus G.
Hirose, Masato
Calcino, Andrew
Baranyi, Christian
Chaichana, Ratcha
Wood, Timothy S.
Schwaha, Thomas
author_facet Saadi, Ahmed J.
Bibermair, Julian
Kocot, Kevin M.
Roberts, Nickellaus G.
Hirose, Masato
Calcino, Andrew
Baranyi, Christian
Chaichana, Ratcha
Wood, Timothy S.
Schwaha, Thomas
author_sort Saadi, Ahmed J.
collection PubMed
description Bryozoans are mostly sessile colonial invertebrates that inhabit all kinds of aquatic ecosystems. Extant bryozoan species fall into two clades with one of them, Phylactolaemata, being the only exclusively freshwater clade. Phylogenetic relationships within the class Phylactolaemata have long been controversial owing to their limited distinguishable characteristics that reflect evolutionary relationships. Here, we present the first phylogenomic analysis of Phylactolaemata using transcriptomic data combined with dense taxon sampling of six families to better resolve the interrelationships and to estimate divergence time. Using maximum-likelihood and Bayesian inference approaches, we recovered a robust phylogeny for Phylactolaemata in which the interfamilial relationships are fully resolved. We show Stephanellidae is the sister taxon of all other phylactolaemates and confirm that Lophopodidae represents the second offshoot within the phylactolaemate tree. Plumatella fruticosa clearly falls outside Plumatellidae as previous investigations have suggested, and instead clusters with Pectinatellidae and Cristatellidae as the sister taxon of Fredericellidae. Our results demonstrate that cryptic speciation is very likely in F. sultana and in two species of Plumatella (P. repens and P. casmiana). Divergence time estimates show that Phylactolaemata appeared at the end of the Ediacaran and started to diverge in the Silurian, although confidence intervals were large for most nodes. The radiation of most extant phylactolaemate families occurred mainly in the Palaeogene and Neogene highlighting post-extinction diversification.
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spelling pubmed-96532322022-11-22 Phylogenomics reveals deep relationships and diversification within phylactolaemate bryozoans Saadi, Ahmed J. Bibermair, Julian Kocot, Kevin M. Roberts, Nickellaus G. Hirose, Masato Calcino, Andrew Baranyi, Christian Chaichana, Ratcha Wood, Timothy S. Schwaha, Thomas Proc Biol Sci Evolution Bryozoans are mostly sessile colonial invertebrates that inhabit all kinds of aquatic ecosystems. Extant bryozoan species fall into two clades with one of them, Phylactolaemata, being the only exclusively freshwater clade. Phylogenetic relationships within the class Phylactolaemata have long been controversial owing to their limited distinguishable characteristics that reflect evolutionary relationships. Here, we present the first phylogenomic analysis of Phylactolaemata using transcriptomic data combined with dense taxon sampling of six families to better resolve the interrelationships and to estimate divergence time. Using maximum-likelihood and Bayesian inference approaches, we recovered a robust phylogeny for Phylactolaemata in which the interfamilial relationships are fully resolved. We show Stephanellidae is the sister taxon of all other phylactolaemates and confirm that Lophopodidae represents the second offshoot within the phylactolaemate tree. Plumatella fruticosa clearly falls outside Plumatellidae as previous investigations have suggested, and instead clusters with Pectinatellidae and Cristatellidae as the sister taxon of Fredericellidae. Our results demonstrate that cryptic speciation is very likely in F. sultana and in two species of Plumatella (P. repens and P. casmiana). Divergence time estimates show that Phylactolaemata appeared at the end of the Ediacaran and started to diverge in the Silurian, although confidence intervals were large for most nodes. The radiation of most extant phylactolaemate families occurred mainly in the Palaeogene and Neogene highlighting post-extinction diversification. The Royal Society 2022-11-09 2022-11-09 /pmc/articles/PMC9653232/ /pubmed/36350215 http://dx.doi.org/10.1098/rspb.2022.1504 Text en © 2022 The Authors. https://creativecommons.org/licenses/by/4.0/Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, provided the original author and source are credited.
spellingShingle Evolution
Saadi, Ahmed J.
Bibermair, Julian
Kocot, Kevin M.
Roberts, Nickellaus G.
Hirose, Masato
Calcino, Andrew
Baranyi, Christian
Chaichana, Ratcha
Wood, Timothy S.
Schwaha, Thomas
Phylogenomics reveals deep relationships and diversification within phylactolaemate bryozoans
title Phylogenomics reveals deep relationships and diversification within phylactolaemate bryozoans
title_full Phylogenomics reveals deep relationships and diversification within phylactolaemate bryozoans
title_fullStr Phylogenomics reveals deep relationships and diversification within phylactolaemate bryozoans
title_full_unstemmed Phylogenomics reveals deep relationships and diversification within phylactolaemate bryozoans
title_short Phylogenomics reveals deep relationships and diversification within phylactolaemate bryozoans
title_sort phylogenomics reveals deep relationships and diversification within phylactolaemate bryozoans
topic Evolution
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9653232/
https://www.ncbi.nlm.nih.gov/pubmed/36350215
http://dx.doi.org/10.1098/rspb.2022.1504
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