Wheat MADS-box gene TaSEP3-D1 negatively regulates heading date
文献类型: 外文期刊
第一作者: Zhang, Lei
作者: Zhang, Lei;Zhang, Hao;Miao, Lingfeng;Yan, Dong;Liu, Pan;Zhao, Guangyao;Jia, Jizeng;Gao, Lifeng;Zhang, Lei;Zhang, Hao;Qiao, Linyi
作者机构:
关键词: Agronomic traits; Haplotypes; Triticum aestivum
期刊名称:CROP JOURNAL ( 影响因子:4.407; 五年影响因子:5.687 )
ISSN: 2095-5421
年卷期: 2021 年 9 卷 5 期
页码:
收录情况: SCI
摘要: The MADS-box gene plays an important role in regulating plant growth and development. In this study, a SEP3-like MADS-box gene TaSEP3-1 was isolated from bread wheat. The expression patterns of the three homoeologs TaSEP3-A1, TaSEP3-B1, and TaSEP3-D1 were similar, and higher expression levels were detected in floral organs and developing kernels. TaSEP3-D1 was located in the nucleus and cytoplasm and possessed transactivation activity in yeast. Homoeolog sequence polymorphism analysis identified four, three, and four haplotypes of TaSEP3-A1,TaSEP3-B1, and TaSEP3-D1, respectively, and the haplotypes of TaSEP3-D1 had larger effects on agronomic traits than those of TaSEP3-A1 and TaSEP3-B1. D1_h4, significantly associated with heading date, plant height, and other yield-related traits, was the favored haplotype of TaSEP3-D1. Transgenic wheat genotypes overexpressing TaSEP3-D1 exhibited delayed heading and reduced plant height, indicating a role in regulating heading date and plant development. These results shed light on the role of TaSEP3-D1 in wheat plant development. The favored haplotype of TaSEP3-D1 can be applied in breeding to improve plant architecture and yield in wheat. (C) 2021 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.
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