Molecular Biology and Evolution, Vol 12, 1132-1137, Copyright © 1995 by Society for Molecular Biology and Evolution
B Winnepenninckx, T Backeljau, LY Mackey, JM Brooks, R De Wachter, S Kumar and JR Garey
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Aschelminth phyla (including four previously unpublished sequences) support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.
ORIGINAL ARTICLE
18S rRNA data indicate that Aschelminthes are polyphyletic in origin and consist of at least three distinct clades
Departement Biochemie, Universiteit Antwerpen (UIA).
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