Dissection of Maize Drought Tolerance at the Flowering Stage Using Genome-Wide Association Studies
文献类型： 外文期刊
作者： Khan, Siffat Ullah 1 ; Zheng, Yanxiao 1 ; Chachar, Zaid 1 ; Zhang, Xuhuan 1 ; Zhou, Guyi 1 ; Zong, Na 1 ; Leng, Pengfei 1 ; Zhao, Jun 1 ;
作者机构： 1.Chinese Acad Agr Sci, Crop Funct Genome Res Ctr, Biotechnol Res Inst, Beijing 100081, Peoples R China
2.Chinese Acad Agr Sci, Natl Nanfan Res Inst Sanya, Sanya 572024, Peoples R China
关键词： maize; drought tolerance; flowering stage; GWAS
期刊名称：GENES （ 影响因子：4.141； 五年影响因子：4.474 ）
ISSN：
年卷期： 2022 年 13 卷 4 期
页码：
收录情况： SCI
摘要： Drought is one of the most critical environmental factors constraining maize production. When it occurs at the flowering stage, serious yield losses are caused, and often, the damage is irretrievable. In this study, anthesis to silk interval (ASI), plant height (PH), and ear biomass at the silking date (EBM) of 279 inbred lines were studied under both water-stress (WS) and well-water (WW) field conditions, for three consecutive years. Averagely, ASI was extended by 25.96%, EBM was decreased by 17.54%, and the PH was reduced by 12.47% under drought stress. Genome-wide association studies were carried out using phenotypic values under WS, WW, and drought-tolerance index (WS-WW or WS/WW) and applying a mixed linear model that controls both population structure and relative kinship. In total, 71, 159, and 21 SNPs, located in 32, 59, and 12 genes, were significantly (P < 10(-5)) associated with ASI, EBM, and PH, respectively. Only a few overlapped candidate genes were found to be associated with the same drought-related traits under different environments, for example, ARABIDILLO 1, glycoprotein, Tic22-like, and zinc-finger family protein for ASI; 26S proteasome non-ATPase and pyridoxal phosphate transferase for EBM; 11-ss-hydroxysteroid dehydrogenase, uncharacterised, Leu-rich repeat protein kinase, and SF16 protein for PH. Furthermore, most candidate genes were revealed to be drought-responsive in an association panel. Meanwhile, the favourable alleles/key variations were identified with a haplotype analysis. These candidate genes and their key variations provide insight into the genetic basis of drought tolerance, especially for the female inflorescence, and will facilitate drought-tolerant maize breeding.
- 相关文献
作者其他论文 更多>>
-
Genome-wide analyses of glutathione S-transferase gene family and expression profiling among three haplotypes Aphis gossypii
作者：Zhang, Yaling;Farhan, Muhammad;Yang, Hanjing;Zhao, Jun;Zhang, Shuai;Ma, Xiaoyan
关键词：Cotton-melon aphid; Population differentiation; Host adaptation; Pesticide resistance
-
Phenylpropanoids metabolism: recent insight into stress tolerance and plant development cues
作者：Ninkuu, Vincent;Zhao, Jun;Li, Huihui;Dakora, Felix Dapare;Ninkuu, Vincent;Yan, Jianpei;Zeng, Hongmei;Aluko, Oluwaseun Olayemi;Liu, Guodao;Chen, Songbi;Zhao, Jun;Li, Huihui;Dakora, Felix Dapare
关键词：phenylpropanoids; plant interactions; post-transcription; post-translation; epigenetics modifications; plant development
-
The efficacy of reductive soil disinfestations on disease control is highly dependent on the microbiomes they reconstructed
作者：Xia, Qing;Yu, Wenhao;Liu, Zihao;Wang, Mengqi;Dai, Shenyan;Zhang, Jinbo;Cai, Zucong;Zhao, Jun;Zeng, Liangbin;Yang, Yuanru;Zhang, Jinbo;Cai, Zucong;Zhao, Jun;Cai, Zucong;Zhao, Jun;Liu, Liangliang
关键词：Reductive soil disinfestation; Pathogen proliferation; Soil microbiome; Microbial network complexity; Longya lily
-
Adaptability of Aphis gossypii glover to different Capsicum annuum varieties
作者：Yang, Jin;Bang, Hao;Yang, Hanjing;Zhao, Jun;Farhan, Muhammad;Zhang, Shuai;Ma, Xiaoyan
关键词：adaptability;
Aphis gossypii glover; biotype;Capsicum annuum ; life table -
Exploring the Impacts of Elevated CO2 on Food Security: Nutrient Assimilation, Plant Growth, and Crop Quality
作者：Dakora, Felix D.;Li, Huihui;Zhao, Jun;Dakora, Felix D.;Li, Huihui;Zhao, Jun
关键词：Photosynthesis; N 2 fixation; Reduced plant nitrogen; Amino acids and nutrients
-
Key mechanisms of plant-Ralstonia solanacearum interaction in bacterial wilt pathogenesis
作者：Chachar, Zaid;Xue, Xiaoming;Fang, Junteng;Chen, Ming;Jiarui, Chen;Fan, Lina;Lai, Ruiqiang;Qi, Yongwen;Chen, Weiwei;Ahmed, Nazir;Chachar, Sadaruddin;Narejo, Mehar-un-Nisa;Ahmed, Naseer
关键词：
Ralstonia solanacearum ; bacterial wilt; virulence factors; plant immune response; disease resistance -
Cloning of maize chitinase 1 gene and its expression in genetically transformed rice to confer resistance against rice blast caused by Pyricularia oryzae
作者：Anwaar, Sadaf;Jabeen, Nyla;Irum, Samra;Ahmad, Khawaja Shafique;Shafique, Saima;Ismail, Hammad;Khan, Siffat Ullah;Tahir, Ateeq;Mehmood, Nasir;Gleason, Mark L.
关键词：
