Genetic Diversity Analysis for Part of Inbred lines in Maize in Huang-Huai-Hai Plain by SNP Chip
Forty-seven inbred lines in maize were used as materials,the genetic diversity and heterosis group were analyzed using 4 434 SNP markers.The genetic structure of inbred lines was analyzed by Admixture software,and cluster analysis and group division were carried out by Treebest software.The results showed that 47 inbred lines were divided into six groups,including Reid,Lancaster,SPT,PB,LRC and Zi330 subgroup.Among them,the main heterosis patterns of hybrid crossed by 10 inbred lines were PB×SPT and Reid × SPT,these heterosis patterns were mainly used in Huang-Huai-Hai region in recent years.