Genetic Relationship Analysis of 148 Maize Inbred Lines Based on SSR Molecular Markers
Forty core SSR markers were used to explore the genetic diversity and genetic relationship of 148 maize inbred lines.The results indicated that,a total of 136 allelic variations were detected across the 148 maize in-bred lines using the 40 core SSR markers,with each marker exhibiting 2 to 6 alleles and an average of 3.4 alleles.The effective number of alleles(Ne)was 1.232 3 to 5.005 0,with an average of 2.393 9.The gene diversity ranged from 0.188 5 to 0.800 2,with an average of 0.525 2.The polymorphic information content(PIC)of SSR markers was between 0.178 1 and 0.770 5,with an average of 0.461 7.By UPGMA cluster analysis method,148 maize inbred lines were divided into 6 major groups,which were named Reid,Luda Red Cob,PB,Lancaster,Sipingtou,and un-certain group.The division of populations largely aligned with the 5 principal groups of Reid,Luda Red Cob,PB,Lancaster,and Sipingtou,reflecting a fundamental agreement with the genealogy.
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