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Improved phylogenetic resolution within Siphonophora (Cnidaria) with implications for trait evolution
Siphonophores are a diverse group of hydrozoans (Cnidaria) that are found at most depths of the ocean - from the surface, like the familiar Portuguese man of war, to the deep sea. They play important roles in ocean ecosystems, and are among the most abundant gelatinous predators. A previous phylogen...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
2018
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6064665/ https://www.ncbi.nlm.nih.gov/pubmed/29940256 http://dx.doi.org/10.1016/j.ympev.2018.06.030 |
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author | Munro, Catriona Siebert, Stefan Zapata, Felipe Howison, Mark Damian-Serrano, Alejandro Church, Samuel H. Goetz, Freya E. Pugh, Philip R. Haddock, Steven H.D. Dunn, Casey W. |
author_facet | Munro, Catriona Siebert, Stefan Zapata, Felipe Howison, Mark Damian-Serrano, Alejandro Church, Samuel H. Goetz, Freya E. Pugh, Philip R. Haddock, Steven H.D. Dunn, Casey W. |
author_sort | Munro, Catriona |
collection | PubMed |
description | Siphonophores are a diverse group of hydrozoans (Cnidaria) that are found at most depths of the ocean - from the surface, like the familiar Portuguese man of war, to the deep sea. They play important roles in ocean ecosystems, and are among the most abundant gelatinous predators. A previous phylogenetic study based on two ribosomal RNA genes provided insight into the internal relationships between major siphonophore groups. There was, however, little support for many deep relationships within the clade Codonophora. Here, we present a new siphonophore phylogeny based on new transcriptome data from 29 siphonophore species analyzed in combination with 14 publicly available genomic and transcriptomic datasets. We use this new phylogeny to reconstruct several traits that are central to siphonophore biology, including sexual system (monoecy vs. dioecy), gain and loss of zooid types, life history traits, and habitat. The phylogenetic relationships in this study are largely consistent with the previous phylogeny, but we find strong support for new clades within Codonophora that were previously unresolved. These results have important implications for trait evolution within Siphonophora, including favoring the hypothesis that monoecy arose at least twice. |
format | Online Article Text |
id | pubmed-6064665 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
record_format | MEDLINE/PubMed |
spelling | pubmed-60646652019-10-01 Improved phylogenetic resolution within Siphonophora (Cnidaria) with implications for trait evolution Munro, Catriona Siebert, Stefan Zapata, Felipe Howison, Mark Damian-Serrano, Alejandro Church, Samuel H. Goetz, Freya E. Pugh, Philip R. Haddock, Steven H.D. Dunn, Casey W. Mol Phylogenet Evol Article Siphonophores are a diverse group of hydrozoans (Cnidaria) that are found at most depths of the ocean - from the surface, like the familiar Portuguese man of war, to the deep sea. They play important roles in ocean ecosystems, and are among the most abundant gelatinous predators. A previous phylogenetic study based on two ribosomal RNA genes provided insight into the internal relationships between major siphonophore groups. There was, however, little support for many deep relationships within the clade Codonophora. Here, we present a new siphonophore phylogeny based on new transcriptome data from 29 siphonophore species analyzed in combination with 14 publicly available genomic and transcriptomic datasets. We use this new phylogeny to reconstruct several traits that are central to siphonophore biology, including sexual system (monoecy vs. dioecy), gain and loss of zooid types, life history traits, and habitat. The phylogenetic relationships in this study are largely consistent with the previous phylogeny, but we find strong support for new clades within Codonophora that were previously unresolved. These results have important implications for trait evolution within Siphonophora, including favoring the hypothesis that monoecy arose at least twice. 2018-06-22 2018-10 /pmc/articles/PMC6064665/ /pubmed/29940256 http://dx.doi.org/10.1016/j.ympev.2018.06.030 Text en https://creativecommons.org/licenses/by/4.0/This is an open access article under the CC BY license (http://creativecommons.org/licenses/BY/4.0/ (https://creativecommons.org/licenses/by/4.0/) ). |
spellingShingle | Article Munro, Catriona Siebert, Stefan Zapata, Felipe Howison, Mark Damian-Serrano, Alejandro Church, Samuel H. Goetz, Freya E. Pugh, Philip R. Haddock, Steven H.D. Dunn, Casey W. Improved phylogenetic resolution within Siphonophora (Cnidaria) with implications for trait evolution |
title | Improved phylogenetic resolution within Siphonophora (Cnidaria) with implications for trait evolution |
title_full | Improved phylogenetic resolution within Siphonophora (Cnidaria) with implications for trait evolution |
title_fullStr | Improved phylogenetic resolution within Siphonophora (Cnidaria) with implications for trait evolution |
title_full_unstemmed | Improved phylogenetic resolution within Siphonophora (Cnidaria) with implications for trait evolution |
title_short | Improved phylogenetic resolution within Siphonophora (Cnidaria) with implications for trait evolution |
title_sort | improved phylogenetic resolution within siphonophora (cnidaria) with implications for trait evolution |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6064665/ https://www.ncbi.nlm.nih.gov/pubmed/29940256 http://dx.doi.org/10.1016/j.ympev.2018.06.030 |
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