Identification of Functional Genetic Variations Underlying Drought Tolerance in Maize Using SNP Markers

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	Identification of Functional Genetic Variations Underlying Drought Tolerance in Maize Using SNP Markers
	Zhuanfang Hao 1; Xinhai Li 1; Chuanxiao Xie 1; Jianfeng Weng 1; Mingshun Li 1; Degui Zhang 1; Xiaoling Liang 2; Lingling Liu 1; Sisi Liu 1; Shihuang Zhang 1
刊名	Journal of Integrative Plant Biology
	2011
卷号	53 期号:8 页码:641-652
关键词	association analysis drought tolerance functional variation maize(Zea mays L.) single nucleotide polymorphism
ISSN号	1672-9072
英文摘要	Single nucleotide polymorphism(SNP)is a common form of genetic variation and popularly exists in maize genome.An Illumina GoldenGate assay with 1 536 SNP markers was used to genotype maize inbred lines and identified the functional genetic variations underlying drought tolerance by association analysis.Across 80 lines,1 006 polymorphic SNPs(65.5%of the total)in the assay with good call quality were used to estimate the pattern of genetic diversity,population structure,and familial relatedness.The analysis showed the best number of fixed subgroups was six,which was consistent with their original sources and results using only simple sequence repeat markers.Pairwise linkage disequilibrium(LD)and association mapping with phenotypic traits investigated under water-stressed and well-watered regimes showed rapid LD decline within 100-500 kb along the physical distance of each chromosome,and that 29 SNPs were associated with at least two phenotypic traits in one or more environments,which were related to drought-tolerant or drought-responsive genes.These drought-tolerant SNPs could be converted into functional markers and then used for maize improvement by marker-assisted selection.
学科主题	农作物
语种	英语
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/106134]
专题	作物科学研究所
作者单位	1.Institute of Crop Science,Chinese Academy of Agricultural Sciences, National Key Facilities for Crop Genetic Resources and Improvement, Beijing, 100081 2.Institute of Food Crops Science,Xinjiang Academy of Agricultural Sciences, Urumqi, 830000
推荐引用方式 GB/T 7714	Zhuanfang Hao,Xinhai Li,Chuanxiao Xie,et al. Identification of Functional Genetic Variations Underlying Drought Tolerance in Maize Using SNP Markers[J]. Journal of Integrative Plant Biology,2011,53(8):641-652.
APA	Zhuanfang Hao.,Xinhai Li.,Chuanxiao Xie.,Jianfeng Weng.,Mingshun Li.,...&Shihuang Zhang.(2011).Identification of Functional Genetic Variations Underlying Drought Tolerance in Maize Using SNP Markers.Journal of Integrative Plant Biology,53(8),641-652.
MLA	Zhuanfang Hao,et al."Identification of Functional Genetic Variations Underlying Drought Tolerance in Maize Using SNP Markers".Journal of Integrative Plant Biology 53.8(2011):641-652.