文献类型： 外文期刊
作者： Zhang, Hongji 1 ; Li, Yuyao 2 ; Liu, Wenlin 1 ; Sun, Yan 1 ; Tang, Jingquan 1 ; Che, Jingyu 3 ; Yang, Shuping 1 ; Wang, Xiangyu 1 ; Zhang, Rui 4 ;
作者机构： 1.Heilongjiang Acad Agr Sci, Crop Resources Inst, Harbin 150086, Peoples R China
2.Heilongjiang Acad Agr Sci, Harbin 150086, Peoples R China
3.Heilongjiang Acad Agr Sci, Keshan Branch, Qiqihar 161600, Peoples R China
4.Heilongjiang Acad Agr Sci, Inst Forage & Grassland Sci, Harbin 150086, Peoples R China
关键词： adaptive traits; association analysis; candidate gene; marker-assisted selection; Triticum aestivum L.
期刊名称：LIFE-BASEL （ 影响因子：3.2； 五年影响因子：3.2 ）
ISSN：
年卷期： 2024 年 14 卷 2 期
页码：
收录情况： SCI
摘要： The dissection of the genetic architecture and the detection of the loci for adaptive traits are important for marker-assisted selection (MAS) for breeding. A spring wheat diversity panel with 251 cultivars, mainly from China, was obtained to conduct a genome-wide association study (GWAS) to detect the new loci, including the heading date (HD), maturating date (MD), plant height (PH), and lodging resistance (LR). In total, 41 loci existing in all 21 chromosomes, except for 4A and 6B, were identified, and each explained 4.3-18.9% of the phenotypic variations existing in two or more environments. Of these, 13 loci are overlapped with the known genes or quantitative trait loci (QTLs), whereas the other 28 are likely to be novel. The 1A locus (296.9-297.7 Mb) is a multi-effect locus for LR and PH, whereas the locus on chromosome 6D (464.5-471.0 Mb) affects both the HD and MD. Furthermore, four candidate genes for adaptive traits were identified, involved in cell division, signal transduction, and plant development. Additionally, two competitive, allele-specific PCR (KASP) markers, Kasp_2D_PH for PH and Kasp_6D_HD for HD, were developed and validated in another 162 spring wheat accessions. Our study uncovered the genetic basis of adaptive traits and provided the associated SNPs and varieties with more favorable alleles for wheat MAS breeding.
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