Genome Wide Association Analysis of Plant Height and Ear Height in Maize
Five hundred and eighty maize inbred lines with rich genetic diversity were used as the association population,and 31 826 SNPs distributed in the whole genome were used to analyze the phenotypic values and BLUE(Best Linear Unbiased Estimate)values of plant height and ear height traits at 3 years separately.The results showed that 58 significant SNPs were detected in four environments,with 6 colocalized SNPs,of which 3 were signif-icantly associated with plant height and distributed on chromosomes 3,5 and 7;and 4 were significantly correlated with ear height.Within 440 kb range of the colocalized significant SNPs,a total of 76 associated genes were detect-ed,of which 66 were described,and 53 genes were classified in GO enrichment analysis,which could be categorized into 20 biological processes,10 molecular functions and 8 cellular components.Based on the comprehensive gene functional annotation and go enrichment analysis results,7 candidate genes that may be related to plant height and ear height traits were predicted.
MaizePlant heightEar heightGenome wide association analysis