LD was detected in the whole genomic region of Ghd7, and no LD decay was observed within the whole genome,既然这样的话,检测到的某个SNP和性状的关联,是真的决定性状变异的SNP或Haplotype吗?
Candidate gene-based association mapping takes advantage of historical and evolutionary recombination events in a natural population to resolve complex trait variation to individual nucleotides.我的理解是LD decay需要足够小,才能确定侯选基因和性状的关联.如果侯选基因在一个LD decay为200kb的区域,那么只能确定和性状相关的变异在200kb.不过如果有其它的证据,也许可以这样干