The Naked Coral'' Hypothesis Revisited - Evidence for and Against Scleractinian Monophyly

Show simple item record Kitahara, Marcelo Visentini [UNIFESP] Lin, Mei-Fang Foret, Sylvain Huttley, Gavin Miller, David J. Chen, Chaolun Allen 2016-01-24T14:37:07Z 2016-01-24T14:37:07Z 2014-04-16
dc.identifier.citation Plos One. San Francisco: Public Library Science, v. 9, n. 4, 13 p., 2014.
dc.identifier.issn 1932-6203
dc.description.abstract The relationship between Scleractinia and Corallimorpharia, Orders within Anthozoa distinguished by the presence of an aragonite skeleton in the former, is controversial. Although classically considered distinct groups, some phylogenetic analyses have placed the Corallimorpharia within a larger Scleractinia/Corallimorpharia clade, leading to the suggestion that the Corallimorpharia are naked corals'' that arose via skeleton loss during the Cretaceous from a Scleractinian ancestor. Scleractinian paraphyly is, however, contradicted by a number of recent phylogenetic studies based on mt nucleotide (nt) sequence data. Whereas the naked coral'' hypothesis was based on analysis of the sequences of proteins encoded by a relatively small number of mt genomes, here a much-expanded dataset was used to reinvestigate hexacorallian phylogeny. the initial observation was that, whereas analyses based on nt data support scleractinian monophyly, those based on amino acid (aa) data support the naked coral'' hypothesis, irrespective of the method and with very strong support. To better understand the bases of these contrasting results, the effects of systematic errors were examined. Compared to other hexacorallians, the mt genomes of Robust'' corals have a higher (A+T) content, codon usage is far more constrained, and the proteins that they encode have a markedly higher phenylalanine content, leading us to suggest that mt DNA repair may be impaired in this lineage. Thus the naked coral'' topology could be caused by high levels of saturation in these mitochondrial sequences, long-branch effects or model violations. the equivocal results of these extensive analyses highlight the fundamental problems of basing coral phylogeny on mitochondrial sequence data. en
dc.description.sponsorship National Science Council (NSC)
dc.description.sponsorship Academia Sinica
dc.description.sponsorship Australian Research Council
dc.description.sponsorship Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.format.extent 13
dc.language.iso eng
dc.publisher Public Library Science
dc.relation.ispartof Plos One
dc.rights Acesso aberto
dc.title The Naked Coral'' Hypothesis Revisited - Evidence for and Against Scleractinian Monophyly en
dc.type Artigo
dc.contributor.institution Universidade Federal de São Paulo (UNIFESP)
dc.contributor.institution Universidade de São Paulo (USP)
dc.contributor.institution James Cook Univ
dc.contributor.institution Acad Sinica
dc.contributor.institution Australian Natl Univ
dc.contributor.institution Natl Taiwan Univ
dc.description.affiliation Universidade Federal de São Paulo, Dept Ciencias Mar, São Paulo, Brazil
dc.description.affiliation Univ São Paulo, Ctr Biol Marinha CEBIMar, São Paulo, Brazil
dc.description.affiliation James Cook Univ, Sch Pharm & Mol Sci, Townsville, Qld 4811, Australia
dc.description.affiliation Acad Sinica, Biodivers Res Ctr, Taipei 115, Taiwan
dc.description.affiliation James Cook Univ, ARC Ctr Excellence Coral Reef Studies, Townsville, Qld 4811, Australia
dc.description.affiliation Australian Natl Univ, Res Sch Biol, Canberra, ACT, Australia
dc.description.affiliation Australian Natl Univ, John Curtin Sch Med Res, Canberra, ACT 2601, Australia
dc.description.affiliation Natl Taiwan Univ, Inst Oceanog, Taipei 10764, Taiwan
dc.description.affiliation Acad Sinica, Taiwan Int Grad Program TIGP Biodivers, Taipei 115, Taiwan
dc.description.affiliationUnifesp Universidade Federal de São Paulo, Dept Ciencias Mar, São Paulo, Brazil
dc.description.sponsorshipID FAPESP: 2012/21583-1
dc.identifier.file WOS000336863900064.pdf
dc.identifier.doi 10.1371/journal.pone.0094774
dc.description.source Web of Science
dc.identifier.wos WOS:000336863900064


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