文献类型： 外文期刊
作者： Jia, Yatao 1 ; Zhang, Yifan 1 ; Sun, Yingkai 1 ; Ma, Chao 1 ; Bai, Yixiong 2 ; Zhang, Hanbing 1 ; Hou, Junbin 1 ; Wang, Yong 1 ; Ji, Wanquan 1 ; Bai, Haibo 3 ; Hao, Shuiyuan 4 ; Wang, Zhonghua 1 ;
作者机构： 1.Northwest A&F Univ, Coll Agron, State Key Lab Crop Stress Resistance & High Effici, Yangling 712100, Peoples R China
2.Qinghai Univ, Qinghai Acad Agr & Forestry Sci, Qinghai Key Lab Hulless Barley Genet & Breeding, Xining 810016, Peoples R China
3.Ningxia Acad Agr & Forestry Sci, Agr Biotechnol Res Ctr, Yinchuan 750002, Peoples R China
4.Hetao Coll, Dept Agr, Bayan Nur City 015000, Peoples R China
关键词： 55K SNP array; tetraploid wheat; yield-related traits; QTL
期刊名称：PLANTS-BASEL （ 影响因子：4.5； 五年影响因子：4.8 ）
ISSN： 2223-7747
年卷期： 2024 年 13 卷 10 期
页码：
收录情况： SCI
摘要： To enhance the understanding of yield-related traits in tetraploid wheat, it is crucial to investigate and identify genes that govern superior yield characteristics. This study utilized the wheat55K single nucleotide polymorphism array to genotype a recombinant inbred line (RIL) population consisting of 120 lines developed through the crossbreeding of two tetraploid wheat varieties, Qin Hei-1 (QH-1) and Durum Wheat (DW). An investigation and analysis were conducted on 11 yield-related traits, including peduncle length (PL), neck length (NL), spike length (SL), flowering date (FD), heading date (HD), thousand-kernel weight (TKW), kernel area ratio (KAR), kernel circumference (KC), kernel length (KL), kernel width (KW), and kernel length-width ratio (KL-WR), over a period of three years in two locations, Yang Ling, Shaanxi, and Lin He, Inner Mongolia. The analysis identified nine stable loci among eight agronomic traits, named QSL.QD-1A.1, QNL.QD-4B.2, QPL.QD-4B.1, QFD.QD-2B, QHD.QD-2B.1, QHD.QD-4B, QKC.QD-4B.2, QKL-WR.QD-4B.6, and QKL.QD-4B.2. Among them, the additive effects of three QTLs, QSL.QD-1A.1, QNL.QD-4B.2, and QFD.QD-2B, were positive, indicating that the enhancing alleles at these loci were derived from the parent line QH-1. These three QTLs showed significant positive effects on the phenotypes of the population materials. Furthermore, potential functional genes were identified within the mapping intervals of QSL.QD-1A.1 and QNL.QD-4B.2, which regulate the development of spike length and neck length, respectively. These results provide potential QTLs and candidate genes, which broaden the genetic basis of agronomic traits related to yield, such as SL, NL, PL, and FD, and benefits for wheat breeding and improvement.
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