Numerous genetic loci identified for drought tolerance in the maize nested association mapping populations
文献类型: 外文期刊
作者: Li, Chunhui 1 ; Sun, Baocheng 2 ; Li, Yongxiang 1 ; Liu, Cheng 2 ; Wu, Xun 1 ; Zhang, Dengfeng 1 ; Shi, Yunsu 1 ; Song, Y 1 ;
作者机构: 1.Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China
2.Xinjiang Acad Agr Sci, Inst Food Crops, Urumqi 830000, Peoples R China
3.Cornell Univ, Inst Genom Div, Ithaca, NY 14850 USA
4.ARS, USA Dept Agr, Ithaca, NY USA
5.Washington State Univ, Dept Crop & Soil Sci, Pullman, WA 99164 USA
关键词: Maize;Nested association mapping population;Drought tolerance;Joint linkage mapping;GWAS;Candidate gene
期刊名称:BMC GENOMICS ( 影响因子:3.969; 五年影响因子:4.478 )
ISSN: 1471-2164
年卷期: 2016 年 17 卷
页码:
收录情况: SCI
摘要: Background: Maize requires more water than most other crops; therefore, the water use efficiency of this crop must be improved for maize production under undesirable land and changing environmental conditions. Results: To elucidate the genetic control of drought in maize, we evaluated approximately 5000 inbred lines from 30 linkage-association joint mapping populations under two contrasting water regimes for seven drought-related traits, including yield and anthesis-silking interval (ASI). The joint linkage analysis was conducted to identify 220 quantitative trait loci (QTLs) under well-watered conditions and 169 QTLs under water-stressed conditions. The genome-wide association analysis identified 365 single nucleotide polymorphisms (SNPs) associated with drought-related traits, and these SNPs were located in 354 candidate genes. Fifty-two of these genes showed significant differential expression in the inbred line B73 under the well-watered and water-stressed conditions. In addition, genomic predictions suggested that the moderate-density SNPs obtained through genotyping-by-sequencing were able to make accurate predictions in the nested association mapping population for drought-related traits with moderate-to-high heritability under the water-stressed conditions. Conclusions: The results of the present study provide important information that can be used to understand the genetic basis of drought stress responses and facilitate the use of beneficial alleles for the improvement of drought tolerance in maize.
- 相关文献
作者其他论文 更多>>
-
Evolution and Genetic Differentiation of Pleurotus tuoliensis in Xinjiang, China, Based on Population Genomics
作者:Jia, Peisong;Sun, Lei;Zhang, Bo;Qi, Zhengxiang;Dai, Yueting;Fu, Yongping;Li, Yu;Jia, Peisong;Nurziya, Yarmamat;Luo, Ying;Jia, Wenjie;Zhu, Qi;Zhao, Zhenhao;Tian, Meng
关键词:Pleurotus tuoliensis; evolution; genetic differentiation; population genomics
-
A Quantitative Index for Evaluating Maize Leaf Wilting and Its Sustainable Application in Drought Resistance Screening
作者:Zhang, Lei;Tang, Huaijun;Xie, Xiaoqing;Sun, Baocheng;Liu, Cheng
关键词:drought; visible green leaf area; leaf wilting; wilting ratio; maize leaf; sustainability
-
A nanopore-based cucumber genome assembly reveals structural variations at two QTLs controlling hypocotyl elongation
作者:Liu, Bin;Xia, Shi-Wei;Song, Shan-Shan;Su, Li-Hong;Li, Yu;Hao, Qian;Liu, Yan-Jun;Zhao, Xiang;Li, Huan-Xiu;Lai, Yun-Song;Liu, Bin;Liu, Bin;Shen, Cheng-Cheng;Li, Xi-Xiang
关键词:
-
Assessing the Influence of Planting Dates on Sustainable Maize Production under Drought Stress Conditions
作者:Tang, Huaijun;Xie, Xiaoqing;Zhang, Lei;Liu, Cheng
关键词:drought stress; irrigation treatments; maize cultivars; sowing dates; growth and yield attributes
-
Genome-Wide Identification and Expression Analyses of the FAR1/FHY3 Gene Family Provide Insight into Inflorescence Development in Maize
作者:Tang, Huaijun;Liu, Cheng;Xie, Xiaoqing;Zhang, Lei;Jing, De;Li, Changyu;Chen, Xunji
关键词:ZmFAR1; transcription factors; far-red light; causal variation; maize
-
Lipid-Related Domestication Accounts for the Extreme Cold Sensitivity of Semiwild and Tropic Xishuangbanna Cucumber (Cucumis sativus L. var. xishuangbannanesis)
作者:Zhang, Rui-Jing;Song, Shan-Shan;Salah, Radwa;Song, Chang-Jiang;Xia, Shi-Wei;Hao, Qian;Liu, Yan-Jun;Li, Yu;Lai, Yun-Song;Liu, Bin
关键词:temperature stress tolerance; QTL mapping; structural variants; lipids; domestication
-
QTL mapping for flowering time in a maize-teosinte population under well-watered and water-stressed conditions
作者:Tang, Huaijun;Zhang, Renyu;Wang, Min;Zhang, Xuan;Qin, Feng;Yang, Xiaohong;Tang, Huaijun;Xie, Xiaoqing;Zhang, Lei;Liu, Cheng;Sun, Baocheng;Qin, Feng;Yang, Xiaohong
关键词:Maize; Drought resistance; Flowering time; QTL mapping