Genome-wide identification of meiotic recombination hot spots detected by SLAF in peanut (Arachis hypogaea L.).

ABSTRACT: Recombination hot spots (RHP), caused by meiosis, are considered to play crucial roles in improvement and domestication of crop. Cultivated peanut is one of the most important rich-source of oil and protein crops. However, no direct scale of recombination events and RHP have been estimated for peanut. To examine the scale of recombination events and RHP in peanut, a RIL population with 200 lines and a natural population with 49 cultivars were evaluated. The precise integrated map comprises 4837 SLAF markers with genetic length of 2915.46 cM and density of 1.66 markers per cM in whole genome. An average of 30.0 crossover (2.06 cMMb^-1) events was detected per RIL plant. The crossover events (CE) showed uneven distribution among B sub-genome (2.32) and A sub-genome (1.85). There we

SUBMITTER: Wang X 

PROVIDER: S-EPMC7429841 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature