High-resolution detection of quantitative trait loci for seven important yield-related traits in wheat (Triticum aestivum L.) using a high-density SLAF-seq genetic map
文献类型： 外文期刊
作者： Li, Tao 1 ; Li, Qiao 1 ; Wang, Jinhui 1 ; Yang, Zhao 1 ; Tang, Yanyan 1 ; Su, Yan 1 ; Zhang, Juanyu 1 ; Qiu, Xvebing 1 ; Pu, Xi 1 ; Pan, Zhifen 1 ; Zhang, Haili 1 ; Liang, Junjun 1 ; Liu, Zehou 4 ; Li, Jun 4 ; Yan, Wuyun 3 ; Yu, Maoqun 1 ; Long, Hai 1 ; Wei, Yuming 2 ; Deng, Guangbing 1 ;
作者机构： 1.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610041, Peoples R China
2.Sichuan Agr Univ, Triticeae Res Inst, Chengdu 611130, Peoples R China
3.State Key Lab Crop Gene Explorat & Utilizat South, Chengdu 611130, Peoples R China
4.Sichuan Acad Agr Sci, Crop Res Inst, Chengdu 610066, Sichuan, Peoples R China
关键词： Wheat; Yield; Yield-related traits; Specific-locus amplified fragment (SLAF); Linkage analysis
期刊名称：BMC GENOMIC DATA
ISSN：
年卷期： 2022 年 23 卷 1 期
页码：
收录情况： SCI
摘要： Background Yield-related traits including thousand grain weight (TGW), grain number per spike (GNS), grain width (GW), grain length (GL), plant height (PH), spike length (SL), and spikelet number per spike (SNS) are greatly associated with grain yield of wheat (Triticum aestivum L.). To detect quantitative trait loci (QTL) associated with them, 193 recombinant inbred lines derived from two elite winter wheat varieties Chuanmai42 and Chuanmai39 were employed to perform QTL mapping in six/eight environments. Results A total of 30 QTLs on chromosomes 1A, 1B, 1D, 2A, 2B, 2D, 3A, 4A, 5A, 5B, 6A, 6D, 7A, 7B and 7D were identified. Among them, six major QTLs QTgw.cib-6A.1, QTgw.cib-6A.2, QGw.cib-6A, QGl.cib-3A, QGl.cib-6A, and QSl.cib-2D explaining 5.96-23.75% of the phenotypic variance were detected in multi-environments and showed strong and stable effects on corresponding traits. Three QTL clusters on chromosomes 2D and 6A containing 10 QTLs were also detected, which showed significant pleiotropic effects on multiple traits. Additionally, three Kompetitive Allele Specific PCR (KASP) markers linked with five of these major QTLs were developed. Candidate genes of QTgw.cib-6A.1/QGl.cib-6A and QGl.cib-3A were analyzed based on the spatiotemporal expression patterns, gene annotation, and orthologous search. Conclusions Six major QTLs for TGW, GL, GW and SL were detected. Three KASP markers linked with five of these major QTLs were developed. These QTLs and KASP markers will be useful for elucidating the genetic architecture of grain yield and developing new wheat varieties with high and stable yield in wheat.
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