Genetic diversification and demographic history of the cactophilic pseudoscorpion Dinocheirus arizonensis from the Sonoran Desert.

ABSTRACT: Sequence data from a segment of the mitochondrial cytochrome c oxidase subunit I (COI) gene were used to examine phylogenetic relationships, estimate gene flow and infer demographic history of the cactophilic chernetid pseudoscorpion, Dinocheirus arizonensis (Banks), from the Sonoran Desert. Phylogenetic trees resolved two clades of D. arizonensis, one from mainland Sonora, Mexico and southern Arizona (clade I) and the other from the Baja California peninsula and southern Arizona (clade II). The two clades were separated by a mean genetic distance (d) of approximately 2.6%. Hierarchical analysis of molecular variance indicated highly significant population structuring in D. arizonensis (overall Phi(ST)=0.860; P<0.0001), with 80% of the genetic variation distributed among the two clades. Mo

SUBMITTER: Pfeiler E 

PROVIDER: S-EPMC2693363 | biostudies-literature | 2009 Jul

REPOSITORIES: biostudies-literature