Cargando…

Genome-Based Analyses of Six Hexacorallian Species Reject the “Naked Coral” Hypothesis

Scleractinian corals are the foundation species of the coral-reef ecosystem. Their calcium carbonate skeletons form extensive structures that are home to millions of species, making coral reefs one of the most diverse ecosystems of our planet. However, our understanding of how reef-building corals h...

Descripción completa

Detalles Bibliográficos
Autores principales: Wang, Xin, Drillon, Guénola, Ryu, Taewoo, Voolstra, Christian R., Aranda, Manuel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Oxford University Press 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5737686/
https://www.ncbi.nlm.nih.gov/pubmed/29048525
http://dx.doi.org/10.1093/gbe/evx196
_version_ 1783287569435328512
author Wang, Xin
Drillon, Guénola
Ryu, Taewoo
Voolstra, Christian R.
Aranda, Manuel
author_facet Wang, Xin
Drillon, Guénola
Ryu, Taewoo
Voolstra, Christian R.
Aranda, Manuel
author_sort Wang, Xin
collection PubMed
description Scleractinian corals are the foundation species of the coral-reef ecosystem. Their calcium carbonate skeletons form extensive structures that are home to millions of species, making coral reefs one of the most diverse ecosystems of our planet. However, our understanding of how reef-building corals have evolved the ability to calcify and become the ecosystem builders they are today is hampered by uncertain relationships within their subclass Hexacorallia. Corallimorpharians have been proposed to originate from a complex scleractinian ancestor that lost the ability to calcify in response to increasing ocean acidification, suggesting the possibility for corals to lose and gain the ability to calcify in response to increasing ocean acidification. Here, we employed a phylogenomic approach using whole-genome data from six hexacorallian species to resolve the evolutionary relationship between reef-building corals and their noncalcifying relatives. Phylogenetic analysis based on 1,421 single-copy orthologs, as well as gene presence/absence and synteny information, converged on the same topologies, showing strong support for scleractinian monophyly and a corallimorpharian sister clade. Our broad phylogenomic approach using sequence-based and sequence-independent analyses provides unambiguous evidence for the monophyly of scleractinian corals and the rejection of corallimorpharians as descendants of a complex coral ancestor.
format Online
Article
Text
id pubmed-5737686
institution National Center for Biotechnology Information
language English
publishDate 2017
publisher Oxford University Press
record_format MEDLINE/PubMed
spelling pubmed-57376862018-01-04 Genome-Based Analyses of Six Hexacorallian Species Reject the “Naked Coral” Hypothesis Wang, Xin Drillon, Guénola Ryu, Taewoo Voolstra, Christian R. Aranda, Manuel Genome Biol Evol Letter Scleractinian corals are the foundation species of the coral-reef ecosystem. Their calcium carbonate skeletons form extensive structures that are home to millions of species, making coral reefs one of the most diverse ecosystems of our planet. However, our understanding of how reef-building corals have evolved the ability to calcify and become the ecosystem builders they are today is hampered by uncertain relationships within their subclass Hexacorallia. Corallimorpharians have been proposed to originate from a complex scleractinian ancestor that lost the ability to calcify in response to increasing ocean acidification, suggesting the possibility for corals to lose and gain the ability to calcify in response to increasing ocean acidification. Here, we employed a phylogenomic approach using whole-genome data from six hexacorallian species to resolve the evolutionary relationship between reef-building corals and their noncalcifying relatives. Phylogenetic analysis based on 1,421 single-copy orthologs, as well as gene presence/absence and synteny information, converged on the same topologies, showing strong support for scleractinian monophyly and a corallimorpharian sister clade. Our broad phylogenomic approach using sequence-based and sequence-independent analyses provides unambiguous evidence for the monophyly of scleractinian corals and the rejection of corallimorpharians as descendants of a complex coral ancestor. Oxford University Press 2017-09-25 /pmc/articles/PMC5737686/ /pubmed/29048525 http://dx.doi.org/10.1093/gbe/evx196 Text en © The Author 2017. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution. http://creativecommons.org/licenses/by-nc/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited. For commercial re-use, please contact journals.permissions@oup.com
spellingShingle Letter
Wang, Xin
Drillon, Guénola
Ryu, Taewoo
Voolstra, Christian R.
Aranda, Manuel
Genome-Based Analyses of Six Hexacorallian Species Reject the “Naked Coral” Hypothesis
title Genome-Based Analyses of Six Hexacorallian Species Reject the “Naked Coral” Hypothesis
title_full Genome-Based Analyses of Six Hexacorallian Species Reject the “Naked Coral” Hypothesis
title_fullStr Genome-Based Analyses of Six Hexacorallian Species Reject the “Naked Coral” Hypothesis
title_full_unstemmed Genome-Based Analyses of Six Hexacorallian Species Reject the “Naked Coral” Hypothesis
title_short Genome-Based Analyses of Six Hexacorallian Species Reject the “Naked Coral” Hypothesis
title_sort genome-based analyses of six hexacorallian species reject the “naked coral” hypothesis
topic Letter
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5737686/
https://www.ncbi.nlm.nih.gov/pubmed/29048525
http://dx.doi.org/10.1093/gbe/evx196
work_keys_str_mv AT wangxin genomebasedanalysesofsixhexacorallianspeciesrejectthenakedcoralhypothesis
AT drillonguenola genomebasedanalysesofsixhexacorallianspeciesrejectthenakedcoralhypothesis
AT ryutaewoo genomebasedanalysesofsixhexacorallianspeciesrejectthenakedcoralhypothesis
AT voolstrachristianr genomebasedanalysesofsixhexacorallianspeciesrejectthenakedcoralhypothesis
AT arandamanuel genomebasedanalysesofsixhexacorallianspeciesrejectthenakedcoralhypothesis