Variation in Recombination Rate Is Shaped by Domestication and Environmental Conditions in Barley.

ABSTRACT: Meiotic recombination generates genetic diversity upon which selection can act. Recombination rates are highly variable between species, populations, individuals, sexes, chromosomes, and chromosomal regions. The underlying mechanisms are controlled at the genetic and epigenetic level and show plasticity toward the environment. Environmental plasticity may be divided into short- and long-term responses. We estimated recombination rates in natural populations of wild barley and domesticated landraces using a population genetics approach. We analyzed recombination landscapes in wild barley and domesticated landraces at high resolution. In wild barley, high recombination rates are found in more interstitial chromosome regions in contrast to distal chromosome regions in domesticated barley. Amo

SUBMITTER: Dreissig S 

PROVIDER: S-EPMC6736446 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature