Identification of loci contributing to maize drought tolerance in a genome-wide association study

doi:10.1007/s10681-016-1688-0

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	Identification of loci contributing to maize drought tolerance in a genome-wide association study
	Wang, Nan 1,4; Wang, Zhen-ping 2,4; Liang, Xiao-ling 3; Weng, Jian-feng 4; Lv, Xiang-ling 1; Zhang, De-gui 4; Yang, Jie 3; Yong, Hong-jun 4; Li, Ming-shun 4; Li, Feng-hai 1
刊名	EUPHYTICA
	2016
卷号	210 期号:2 页码:165-179
关键词	Maize (Zea mays L.) Drought tolerance Genome-wide association studies (GWAS) Candidate genes Consensus QTL
ISSN号	0014-2336
DOI	10.1007/s10681-016-1688-0
通讯作者	Wang, Nan
英文摘要	Genome-wide association studies (GWAS) have been used widely to analyze the genetic control of complex traits in crops. In the present study, seven related phenotypic traits were analyzed in combination to study their association with 41,101 SNPs in 201 maize inbred lines that had been evaluated in seven environments (year/location combinations) under water-stressed (WS) or well-watered (WW) regimes. By comparing the association signals with a fixed P value, GWAS showed that the number of association signals identified varied among traits and in different environments. Data that were missing under the severe water stress treatment had a great impact on the results of this GWAS. A total of 206 significant SNPs were associated with 115 candidate genes for drought tolerance and related traits including final grain yield, total number of ears per plot, kernel number per row, plant height, anthesis-silking interval, days to anthesis (DtA), and days to silking (DtS). Among these, four genes were associated with at least two different related traits, and six genes associated with traits were detected in at least two environments under water stress. Nine candidate QTL identified by GWAS were also discovered, three of which co-located to a consensus QTL region meta-analyzed by linkage mapping for drought tolerance. Some regulatory genes related to abiotic stress responses might also make a strong contribution to drought tolerance. The comprehensive information presented here regarding consensus QTL combined with candidate genes derived from GWAS provides an important reference tool for improving maize drought tolerance.
学科主题	Agronomy ; Plant Sciences ; Horticulture
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000379366800002
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/4495]
专题	作物科学研究所
作者单位	1.Shenyang Agr Univ, Coll Agron, Shenyang, Liaoning, Peoples R China 2.Tonghua Acad Agr Sci, Tonghua, Jilin, Peoples R China 3.Xinjiang Acad Agr Sci, Inst Food Crops, Urumqi, Peoples R China 4.Chinese Acad Agr Sci, Inst Crop Sci, Natl Key Facil Crop Gene Resources & Genet Improv, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wang, Nan,Wang, Zhen-ping,Liang, Xiao-ling,et al. Identification of loci contributing to maize drought tolerance in a genome-wide association study[J]. EUPHYTICA,2016,210(2):165-179.
APA	Wang, Nan.,Wang, Zhen-ping.,Liang, Xiao-ling.,Weng, Jian-feng.,Lv, Xiang-ling.,...&Li, Xin-hai.(2016).Identification of loci contributing to maize drought tolerance in a genome-wide association study.EUPHYTICA,210(2),165-179.
MLA	Wang, Nan,et al."Identification of loci contributing to maize drought tolerance in a genome-wide association study".EUPHYTICA 210.2(2016):165-179.