Dinoflagellate phylogeny as inferred from heat shock protein 90 and ribosomal gene sequences.

ABSTRACT:

Background

Interrelationships among dinoflagellates in molecular phylogenies are largely unresolved, especially in the deepest branches. Ribosomal DNA (rDNA) sequences provide phylogenetic signals only at the tips of the dinoflagellate tree. Two reasons for the poor resolution of deep dinoflagellate relationships using rDNA sequences are (1) most sites are relatively conserved and (2) there are different evolutionary rates among sites in different lineages. Therefore, alternative molecular markers are required to address the deeper phylogenetic relationships among dinoflagellates. Preliminary evidence indicates that the heat shock protein 90 gene (Hsp90) will provide an informative marker, mainly because this gene is relatively long and appears to have relatively uniform rates of e

SUBMITTER: Hoppenrath M 

PROVIDER: S-EPMC2951904 | biostudies-literature | 2010 Oct

REPOSITORIES: biostudies-literature