18S rRNA data indicate that Aschelminthes are polyphyletic in origin and consist of at least three distinct clades.
Year: 1995
Type: article
Abstract: 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 Analyses of 18S rRNA sequences from six Aschelminth phyla (including four previously unpublished sequences) support polyphyly for the Aschelminthes.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.
Source: Molecular Biology and Evolution
Authors: B Winnepenninckx, T Backeljau, L Y Mackey, J M Brooks, R De Wachter, S Kumar, J R Garey
Institution: University of Antwerp
Language: English
Domain: Life Sciences
Open Access status: bronze
OpenAlex ID: W1937900804