Inferring phylogenies with incomplete data sets: a 5-gene, 567-taxon analysis of angiosperms.

ABSTRACT:

Background

Phylogenetic analyses of angiosperm relationships have used only a small percentage of available sequence data, but phylogenetic data matrices often can be augmented with existing data, especially if one allows missing characters. We explore the effects on phylogenetic analyses of adding 378 matK sequences and 240 26S rDNA sequences to the complete 3-gene, 567-taxon angiosperm phylogenetic matrix of Soltis et al.

Results

We performed maximum likelihood bootstrap analyses of the complete, 3-gene 567-taxon data matrix and the incomplete, 5-gene 567-taxon data matrix. Although the 5-gene matrix has more missing data (27.5%) than the 3-gene data matrix (2.9%), the 5-gene analysis resulted in higher levels of bootstrap support. Within the 567-taxon tree, the increase i

SUBMITTER: Burleigh JG 

PROVIDER: S-EPMC2674047 | biostudies-literature | 2009 Mar

REPOSITORIES: biostudies-literature