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Genomic regions controlling yield-related traits in spring wheat: a mini review and a case study for rainfed environments in Australia and China

文献类型： 外文期刊

作者： Liu, Hui 1 ; Mullan, Daniel 3 ; Zhao, Shancen 4 ; Zhang, Yong 5 ; Ye, Jun 6 ; Wang, Yong 7 ; Zhang, Aimin 8 ; Zhao, Xiaoqing 6 ; Liu, Guannan 1 ; Zhang, Chi 4 ; Chan, Kenneth 9 ; Lu, Zhanyuan 6 ; Yan, Guijun 1 ;

作者机构： 1.Univ Western Australia, Sch Agr & Environm, Perth, WA 6009, Australia

2.Univ Western Australia, Inst Agr, Perth, WA 6009, Australia

3.InterGrain Pty Ltd, Bibra Lake, WA 6163, Australia

4.Beijing Genom Inst, Shenzhen 518053, Peoples R China

5.Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China

6.Inner Mongolia Acad Agr & Anim Husb Sci, Inner Mongolia Conservat Tillage Engn Technol Res, Inner Mongolia Key Lab Degradat Farmland Ecol Res, Hohhot 010070, Peoples R China

7.Gansu Acad Agr Sci, Wheat Res Inst, Lanzhou 730070, Peoples R China

8.Hebei Agr Univ, Coll Agron, State Key Lab North China Crop Improvement & Regu, Key Lab Crop Growth Regulat Hebei Prov, Baoding 071001, Peoples R China

9.Australian Genome Res Facil, Melbourne, Vic 3000, Australia

关键词： Chromosome segments; Gene clusters; Drought; Heat

期刊名称：GENOMICS （ 影响因子：4.31； 五年影响因子：4.38 ）

ISSN： 0888-7543

年卷期： 2022 年 114 卷 2 期

页码：

收录情况： SCI

摘要： A genome-wide association study (GWAS) was performed in six environments to identify major or consistent alleles responsible for wheat yield traits in Australia and North China where rainfed farming system is adopted. A panel of 228 spring wheat varieties were genotyped by double digest restriction-site associated DNA genotypingby-sequencing. A total of 223 significant marker-trait association (MTAs) and 46 candidate genes for large-or consistent-effect MTAs were identified. The results were compared with previous studies based on a mini-review of 23 GWAS analyses on wheat yield. A phenomenon seldom reported in previous studies was that MTAs responsible for the trait tended to cluster together at certain chromosome segments, and many candidate genes were in the form of gene clusters. Although linkage disequilibrium (LD) might contribute to the co-segregation of the regions, it also suggested that marker-assisted selection (MAS) or transgenic method targeting a single gene might not be as effective as MAS targeting a larger genomic region where all the genes or gene clusters underlying play important roles.

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[1]Genomic regions controlling yield-related traits in spring wheat: a mini review and a case study for rainfed environments in Australia and China. Liu, Hui,Liu, Guannan,Yan, Guijun,Liu, Hui,Liu, Guannan,Yan, Guijun,Mullan, Daniel,Zhao, Shancen,Zhang, Chi,Zhang, Yong,Ye, Jun,Zhao, Xiaoqing,Lu, Zhanyuan,Wang, Yong,Ye, Jun,Zhang, Aimin,Chan, Kenneth. 2022

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