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

doi:10.1007/s11032-015-0421-3

	Mapping of QTL conferring resistance to northern corn leaf blight using high-density SNPs in maize
	Chen, Gengshen 1; Wang, Xiaoming 2; Long, Shusheng 3; Jaqueth, Jennifer 4; Li, Bailin 4; Yan, Jianbing 1; Ding, Junqiang 1,5,6
刊名	MOLECULAR BREEDING
	2016
卷号	36 期号:1 页码:-
关键词	Maize Northern corn leaf blight QTL RIL SNP marker
ISSN号	1380-3743
DOI	10.1007/s11032-015-0421-3
通讯作者	Chen, Gengshen
英文摘要	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 x By815 cross were planted in Yangling, China, in 2012 and 2013. NCLB score and lesion size were investigated after artificial inoculation. Significant 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, respectively. Two stable QTL were identified in both years. Of these, qNCLB5.04, located on chromosome 5 (bin 5.04), had the largest resistance effect, accounting for 19 and 20 % of the phenotypic variation in 2012 and 2013, respectively. For lesion size, six QTL were identified. Of these, one consensus QTL was associated with both lesion length and width, and the other five were associated only with lesion width. Among all QTL identified, only qNCLB5.04 was associated with both NCLB score and lesion size. Thus, our mapping results suggest that qNCLB5.04 could be a desirable target for marker-assisted selection for NCLB resistance in maize breeding programs.
学科主题	Agronomy ; Plant Sciences ; Genetics & Heredity ; Horticulture
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000368500100004
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/4601]
专题	作物科学研究所_种质资源保存与研究中心
作者单位	1.Huazhong Agr Univ, Natl Key Lab Crop Genet Improvement, Wuhan 430070, Hubei, Peoples R China 2.Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China 3.Northwest Agr & Forestry Univ, Coll Plant Protect, Yangling 712100, Peoples R China 4.DuPont Pioneer, Wilmington, DE 19803 USA 5.Henan Agr Univ, Coll Agron, Synerget Innovat Ctr Henan Grain Crops, Zhengzhou 450002, Peoples R China 6.Henan Agr Univ, Natl Key Lab Wheat & Maize Crop Sci, Zhengzhou 450002, Peoples R China
推荐引用方式 GB/T 7714	Chen, Gengshen,Wang, Xiaoming,Long, Shusheng,et al. Mapping of QTL conferring resistance to northern corn leaf blight using high-density SNPs in maize[J]. MOLECULAR BREEDING,2016,36(1):-.
APA	Chen, Gengshen.,Wang, Xiaoming.,Long, Shusheng.,Jaqueth, Jennifer.,Li, Bailin.,...&Ding, Junqiang.(2016).Mapping of QTL conferring resistance to northern corn leaf blight using high-density SNPs in maize.MOLECULAR BREEDING,36(1),-.
MLA	Chen, Gengshen,et al."Mapping of QTL conferring resistance to northern corn leaf blight using high-density SNPs in maize".MOLECULAR BREEDING 36.1(2016):-.