Linkage disequilibrium and population structure in wild and domesticated populations of Phaseolus vulgaris L.

ABSTRACT: Together with the knowledge of the population structure, a critical aspect for the planning of association and/or population genomics studies is the level of linkage disequilibrium (LD) that characterizes the species and the population used for such an analysis. We have analyzed the population structure and LD in wild and domesticated populations of Phaseolus vulgaris L. using amplified fragment length polymorphism markers, most of which were genetically mapped in two recombinant inbred populations. Our results reflect the previous knowledge of the occurrence of two major wild gene pools of P. vulgaris, from which two independent domestication events originated, one in the Andes and one in Mesoamerica. The high level of LD in the whole sample was mostly due to the gene pool structure, with

SUBMITTER: Rossi M 

PROVIDER: S-EPMC3352449 | biostudies-literature | 2009 Nov

REPOSITORIES: biostudies-literature