Linkage Disequilibrium in a Diversity and Stress Adaptation Rice Panel for Association Mapping
作者单位：Rice Research InstituteJiangXi Academy of Agricultural Science
会议名称：《中国作物学会2013年学术年会》
会议日期：2013年
关 键 词：linkage disequilibrium(LD) LD Decay rice Association Mapping
摘 要：Estimated of linkage disequilibrium(LD) are important as an indication of how useful LD-base association genetics approaches can be when compared with other available mapping *** success of association mapping efforts depends on the possibilities of separating LD due to linkage from LD due to other *** an attempt to associate markers with drought tolerance at vegetative stage,we examined the pattern of LD in a diversity and stress adaptation rice panel containing 184 rice germplasm accessions with 141 polymorphic SSR markers that were nearly evenly distributed at 3mb bin on the 12 rice *** LD was detected across the genome of the 184 rice genotypes and the extent of LD varied with different chromosomes, selfing in *** species and existing of population structure in the rice panel might be the major factors of creating high *** genetic linkage was detected except for two pairs of SSR markers RM288 and RM464 (11.98758 Mb),RM215 and RM464(14.61396 Mb),which were located on chromosome 9 at a relatively far distance but showed significantly higher *** high degree of LD and fast decay of LD detected in this experiment indicating the 141 SSR markers used in the experiment could be feasible to carry out the whole-genome scan association studies with a relatively high resolution.