A co-located QTL for seven spike architecture-related traits shows promising breeding use potential in common wheat (Triticum aestivum L.)

文献类型： 外文期刊

第一作者： Zhou, Jieguang

作者： Zhou, Jieguang;Liu, Qian;Tian, Rong;Yang, Yaoyao;Zhao, Conghao;Liu, Yanlin;Tang, Huaping;Deng, Mei;Xu, Qiang;Jiang, Qiantao;Chen, Guoyue;Qi, Pengfei;Jiang, Yunfeng;Zheng, Youliang;Wei, Yuming;Ma, Jian;Zhou, Jieguang;Liu, Qian;Tian, Rong;Chen, Huangxin;Wang, Jian;Yang, Yaoyao;Zhao, Conghao;Liu, Yanlin;Tang, Huaping;Deng, Mei;Xu, Qiang;Jiang, Qiantao;Chen, Guoyue;Qi, Pengfei;Jiang, Yunfeng;Zheng, Youliang;Wei, Yuming;Ma, Jian;Chen, Guangdeng;Tang, Liwei;Ren, Yong;He, Yuanjiang;Zheng, Zhi;Liu, Chunji

作者机构：

期刊名称：THEORETICAL AND APPLIED GENETICS （ 影响因子：5.4； 五年影响因子：5.7 ）

ISSN： 0040-5752

年卷期： 2024 年 137 卷 1 期

页码：

收录情况： SCI

摘要： Spike-related traits, including fertile florets per spike (FFS), kernel weight per spike (KWS), total florets per spike (TFS), florets per spikelet (FPs), florets in the middle spikelet (FMs), fertile florets per spikelet (FFPs), and kernel weight per spikelet (KWPs), are key traits in improving wheat yield. In the present study, quantitative trait loci (QTL) for these traits evaluated under various environments were detected in a recombinant inbred line population (msf/Chuannong 16) mainly genotyped using the 16 K SNP array. Ultimately, we identified 60 QTL, but only QFFS.sau-MC-1A for FFS was a major and stably expressed QTL. It was located on chromosome arm 1AS, where loci for TFS, FPs, FMs, FFS, FFPs, KWS, and KWPs were also simultaneously co-mapped. The effect of QFFS.sau-MC-1A was further validated in three independent segregating populations using a Kompetitive Allele-Specific PCR marker. For the co-located QTL, QFFS.sau-MC-1A, the presence of a positive allele from msf was associate with increases for all traits: + 12.29% TFS, + 10.15% FPs, + 13.97% FMs, + 17.12% FFS, + 14.75% FFPs, + 22.17% KWS, and + 19.42% KWPs. Furthermore, pleiotropy analysis showed that the positive allele at QFFS.sau-MC-1A simultaneously increased the spike length, spikelet number per spike, and thousand-kernel weight. QFFS.sau-MC-1A represents a novel QTL for marker-assisted selection with the potential for improving wheat yield. Four genes, TraesCS1A03G0012700, TraesCS1A03G0015700, TraesCS1A03G0016000, and TraesCS1A03G0016300, which may affect spike development, were predicted in the physical interval harboring QFFS.sau-MC-1A. Our results will help in further fine mapping QFFS.sau-MC-1A and be useful for improving wheat yield.

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