The wheat sucrose synthase gene TaSus1 is a determinant of grain number per spike

文献类型： 外文期刊

第一作者： Shen, Liping

作者： Shen, Liping;Zhang, Lili;Liu, Yangyang;Shen, Kuocheng;Wu, He;Sun, Zhiwen;Ye, Botao;Yu, Xuchang;Wang, Ziying;Liu, Danni;Guo, Zifeng;Shen, Liping;Guo, Zifeng;Yin, Changbin;Bi, Aoyue;Zhao, Xuebo;Xu, Daxing;Lu, Fei;Xu, Xiaowan;Wang, Ke;He, Zhonghu;Zhang, Xueyong;Hao, Chenyang;Hou, Jian;Hao, Yuanfeng;Liu, Yangyang;Shen, Kuocheng;Wu, He;Sun, Zhiwen;Bi, Aoyue;Zhao, Xuebo;Xu, Daxing;Ye, Botao;Yu, Xuchang;Wang, Ziying;Liu, Danni;Lu, Fei;Guo, Zifeng;He, Zhonghu;Lu, Fei

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关键词： Domestication selection; Fertile spikelet number per spike (FSN); Geographical differentiation; Grain number per spike (GNS); TaSus1

期刊名称：CROP JOURNAL （ 影响因子：6.6； 五年影响因子：6.5 ）

ISSN： 2095-5421

年卷期： 2024 年 12 卷 1 期

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收录情况： SCI

摘要： Some haplotypes of the sucrose synthase gene TaSus1 are associated with thousand-grain weight (TGW) in wheat (Triticum aestivum L.). However, no mutations have been identified within the gene to test this association. The effects of TaSus1 on grain number per spike (GNS) also are largely unknown. Our previous genome-wide association study identified TaSus-A1 as a candidate gene controlling fertile spikelet number per spike (FSN). In the present study, we generated two independent mutants for the three TaSus1 homoeologs by CRISPR/Cas9-mediated genome editing. The triple mutants displayed lower FSN, GNS, grain number per spikelet (GNST), and TGW than wild-type plants. In 306 hexaploid wheat accessions, two single-nucleotide polymorphisms in TaSus-A1 contributed differently to GNS. Introgression of the two alleles into a wheat genetic background confirmed their effects. The alleles differed in geographical distribution among the accessions. (c) 2023 Crop Science Society of China and Institute of Crop Science, CAAS. Production and hosting by Elsevier B.V. on behalf of KeAi Communications Co., Ltd. This is an open access article under the CC BY-NC

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