%A ZHANG Huan-Xin,WENG Jian-Feng,ZHANG Xiao-Cong,LIU Chang-Lin,YONG Hong-Jun,HAO Zhuan-Fang,LI Xin-Hai %T Genome-wide Association Analysis of Kernel Row Number in Maize %0 Journal Article %D 2014 %J Acta Agronomica Sinica %R 10.3724/SP.J.1006.2014.00001 %P 1-6 %V 40 %N 01 %U {https://zwxb.chinacrops.org/CN/abstract/article_5543.shtml} %8 2014-01-12 %X
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.