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Theory Biosci. 2007 Aug;126(1):35-42. Epub 2007 May 10.

The mitochondrial DNA of Xenoturbella bocki: genomic architecture and phylogenetic analysis.

Author information

1
Institut für Zoologie, Molekulare Evolution und Systematik der Tiere Universität Leipzig, Talstr. 33, 04103, Leipzig, Germany. perseke@rz.uni-leipzig.de

Abstract

The phylogenetic position of Xenoturbella bocki has been a matter of controversy since its description in 1949. We sequenced a second complete mitochondrial genome of this species and performed phylogenetic analyses based on the amino acid sequences of all 13 mitochondrial protein-coding genes and on its gene order. Our results confirm the deuterostome relationship of Xenoturbella. However, in contrast to a recently published study (Bourlat et al. in Nature 444:85-88, 2006), our data analysis suggests a more basal branching of Xenoturbella within the deuterostomes, rather than a sister-group relationship to the Ambulacraria (Hemichordata and Echinodermata).

PMID:
18087755
DOI:
10.1007/s12064-007-0007-7
[Indexed for MEDLINE]

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