Local differentiation amidst extensive allele sharing in Oryza nivara and O. rufipogon.

ABSTRACT: Genetic variation patterns within and between species may change along geographic gradients and at different spatial scales. This was revealed by microsatellite data at 29 loci obtained from 119 accessions of three Oryza series Sativae species in Asia Pacific: Oryza nivara Sharma and Shastry, O. rufipogon Griff., and O. meridionalis Ng. Genetic similarities between O. nivara and O. rufipogon across their distribution are evident in the clustering and ordination results and in the large proportion of shared alleles between these taxa. However, local-level species separation is recognized by Bayesian clustering and neighbor-joining analyses. At the regional scale, the two species seem more differentiated in South Asia than in Southeast Asia as revealed by F ST analysis. The presence of stron

SUBMITTER: Banaticla-Hilario MC 

PROVIDER: S-EPMC3790550 | biostudies-literature | 2013 Sep

REPOSITORIES: biostudies-literature