Mitogenomic evaluation of the historical biogeography of cichlids toward reliable dating of teleostean divergences.

ABSTRACT:

Background

Recent advances in DNA sequencing and computation offer the opportunity for reliable estimates of divergence times between organisms based on molecular data. Bayesian estimations of divergence times that do not assume the molecular clock use time constraints at multiple nodes, usually based on the fossil records, as major boundary conditions. However, the fossil records of bony fishes may not adequately provide effective time constraints at multiple nodes. We explored an alternative source of time constraints in teleostean phylogeny by evaluating a biogeographic hypothesis concerning freshwater fishes from the family Cichlidae (Perciformes: Labroidei).

Results

We added new mitogenomic sequence data from six cichlid species and conducted phylogenetic analyses using

SUBMITTER: Azuma Y 

PROVIDER: S-EPMC2496912 | biostudies-literature | 2008 Jul

REPOSITORIES: biostudies-literature