Impacts of nucleotide fixation during soybean domestication and improvement.

ABSTRACT:

Background

Plant domestication involves complex morphological and physiological modification of wild species to meet human needs. Artificial selection during soybean domestication and improvement results in substantial phenotypic divergence between wild and cultivated soybeans. Strong selective pressure on beneficial phenotypes could cause nucleotide fixations in the founder population of soybean cultivars in quite a short time.

Results

Analysis of available sequencing accessions estimates that ~5.3 million single nucleotide variations reach saturation in cultivars, and then ~9.8 million in soybean germplasm. Selective sweeps defined by loss of genetic diversity reveal 2,255 and 1,051 genes were involved in domestication and subsequent improvement, respectively. Both process

SUBMITTER: Zhao S 

PROVIDER: S-EPMC4358728 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature