Abstract
Kernel row number(KRN) is one of grain yield components in maize(Zea mays L.).Investigation of its genetic architecture will help develop high-yield varieties in maize.In this study,the KRN in a panel of 203 maize inbred lines was detected in Urumqi of Xinjiang,Gongzhuling of Jilin,and Sanya of Hainan in 2007,and used to perform the genome-wide analysis for KRN using MaizeSNP50 BeadChip.A total of nine SNPs were found to be significantly associated with KRN at a threshold of P 0.0001,which were on chromosome Bins 1.02,1.10,7.03,8.02,9.06,and 10.03,respectively.Eight of these SNPs were located in the QTL intervals reported previously.Meanwhile,four candidate genes were scanned,encoding auxin signaling F-box containing protein,kn1 protein,AP2 domain containing protein and leucine-rich repeat transmembrane protein kinase respectively.In summary,these identified genes and SNPs will offer essential information for cloning yield-related genes in maize.
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