ISSN:
1573-5117
Keywords:
phylogeny
;
acanthocephala
;
rotifera
;
bilateria
;
evolution
;
18S rRNA gene
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Advances in morphological and molecular studies of metazoan evolution have led to a better understanding of the relationships among Rotifera (Monogononta, Bdelloidea, Seisonidea) and Acanthocephala, and their relationships to other bilateral animals. The most accepted morphological analysis places Acanthocephala as a sister group to Rotifera, although other studies have placed Acanthocephala as a sister taxon to Bdellodea or Seisonidea. Molecular analyses using nuclear 18S rRNA and mitochondrial 16S rRNA genes support Acanthocephala as a sister taxon to Bdelloidea, although no molecular data is available for Seisonidea. Combining molecular and morphological analyses of Bilateria leads to a tree with Platyhelminthes, Rotifera, Acanthocephala and Gnathostomulida (and probably Gastrotricha) as a sister group to the annelid-mollusc lineage of the Spiralia (Lophotrochozoa).
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1017060902909
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