Population Genetic Analysis of a Bread Wheat Panel from Northern and Huang-Huai Agro-Ecological Regions in China
文献类型： 外文期刊
作者： Jin, Xiaojie 1 ; Gao, Huimin 3 ; Liu, Qian 2 ; Zhao, Yun 2 ; He, Wenchuang 4 ; Wang, Guijuan 5 ; Zhou, Yu 6 ; Song, Zheng 1 ; Zhao, Xiaobin 1 ; Ren, Xifeng 5 ; Peng, Yanchun 1 ; Zhang, Yingjun 2 ;
作者机构： 1.Hubei Acad Agr Sci, Hubei Key Lab Food Crop Germplasm & Genet Improvem, Minist Agr & Rural Affairs, Inst Food Crops,Key Lab Crop Mol Breeding,Hubei Ho, Wuhan 430064, Peoples R China
2.Hebei Acad Agr & Forestry Sci, Inst Cereal & Oil Crops, Lab Crop Genet & Breeding Hebei, Shijiazhuang 050035, Peoples R China
3.Hebei Acad Agr & Forestry Sci, Inst Cash Crops, Shijiazhuang 050035, Peoples R China
4.Chinese Acad Agr Sci, Agr Genom Inst Shenzhen, Shenzhen 518000, Peoples R China
5.Hubei Prov Seed Adm Bur, Wuhan 430070, Peoples R China
6.Huazhong Agr Univ, Coll Plant Sci & Technol, Wuhan 430070, Peoples R China
关键词： bread wheat; SNP; population structure; genetic diversity; ancestry informative markers
期刊名称：AGRONOMY-BASEL （ 影响因子：3.7； 五年影响因子：4.0 ）
ISSN：
年卷期： 2023 年 13 卷 9 期
页码：
收录情况： SCI
摘要： Bread wheat (Triticum aestivum L.) is one of the most extensively cultivated cereal crops around the world. Here, we investigated the population structure and genetic diversity of a panel mainly originated from two wheat agro-ecological regions (northern winter wheat region, NW; and the Huang-Huai River Valley's facultative wheat region, HH) in China based on a 15K SNP array. Population genetic analysis revealed that the optimal population number (K) was three, and the three groups were roughly related to ecological regions, including NW (mainly Hebei), HH1 (Henan-Shaanxi), and HH2 (Shandong). Within HH, HH1 had a higher nucleotide diversity (& pi; = 0.31167), minor allele frequency (MAF = 0.2663), polymorphism information content (PIC = 0.2668), and expected heterozygosity (Hexp = 0.3346) than HH2. Furthermore, our results demonstrated that genetic diversity decreases with the advancement of wheat breeding. Finally, inference of ancestry informative markers indicated that the genomes of the three pure groups from the three provinces (Hebei, Henan, and Shandong) of the two regions have genomic regions with different mosaic patterns derived from the two landrace groups. These findings may facilitate the development of wheat breeding strategies to target novel desired alleles in the future.
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