Mapping of QTL conferring resistance to northern corn leaf blight using high-density SNPs in maize

作者：Gengshen Chen. Xiaoming Wang. Shusheng Long. Jennifer Jaqueth. Bailin Li. Jianbing Yan. Junqiang Ding

影响因子：

刊物名称：Molecular Breeding

出版年份：2016

卷：36  期：4  页码：1–9

文章摘要：

Northern corn leaf blight (NCLB) is a prevalent foliar disease in maize. Deployment of resistant cultivars is an effective way to control NCLB. In this study, 207 recombinant inbred lines derived from a K22 9 By815 cross were planted in Yangling, China, in 2012 and 2013. NCLB score and lesion size were investigated after artificial inoculation. Signifi- cant phenotypic variation in NCLB resistance was observed in both years. Using a genetic map containing high-density single-nucleotide polymorphisms with average genetic distance of 0.74 cM, quantitative trait loci (QTL) for NCLB score and lesion size were analyzed. For NCLB score, four and three QTL were identified in 2012 and 2013, respecti