18S rRNA data indicate that Aschelminthes are polyphyletic in origin and consist of at least three distinct clades

Autor: L. Y. Mackey, R De Wachter, J. M. Brooks, T Backeljau, James R. Garey, Birgitta Winnepenninckx, Sudhir Kumar
Rok vydání: 1995
Předmět:
Zdroj: Europe PubMed Central
Molecular biology and evolution
ISSN: 1537-1719
0737-4038
DOI: 10.1093/oxfordjournals.molbev.a040287
Popis: The Aschelminthes is a collection of at least eight animal phyla, historically grouped together because the absence of a true body cavity was perceived as a pseudocoelom. Analyses of 18S rRNA sequences from six Aschelminth phyla (including four previously unpublished sequences) support polyphyly for the Aschelminthes. at least three distinct groups of Aschelminthes were detected: the Priapulida among the protostomes, the Rotifera-Acanthocephala as a sister group to the protostomes, and the Nematoda as a basal group to the triploblastic Eumetazoa.
Databáze: OpenAIRE