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Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Proc+Natl+Acad+Sci+U+S+A 2015 ; 112 (50): 15402-7 Nephropedia Template TP
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Genomic data do not support comb jellies as the sister group to all other animals #MMPMID26621703
Pisani D; Pett W; Dohrmann M; Feuda R; Rota-Stabelli O; Philippe H; Lartillot N; Wörheide G
Proc Natl Acad Sci U S A 2015[Dec]; 112 (50): 15402-7 PMID26621703show ga
Clarifying the phylogeny of animals is fundamental to understanding their evolution. Traditionally, sponges have been considered the sister group of all other extant animals, but recent genomic studies have suggested comb jellies occupy that position instead. Here, we analyzed the current genomic evidence from comb jellies and found no convincing support for this hypothesis. Instead, when analyzed with appropriate methods, recent genomic data support the traditional hypothesis. We conclude that the alternative scenario of animal evolution according to which ctenophores evolved morphological complexity independently from cnidarians and bilaterians or, alternatively, sponges secondarily lost a nervous system, muscles, and other characters, is not supported by the available evidence.