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当前位置: 首页 > 文章 > Wheat MADS-box gene TaSEP3-D1 negatively regulates heading date 作物学报(英文版) 2021,9 (5)
Position: Home > Articles > Wheat MADS-box gene TaSEP3-D1 negatively regulates heading date The Crop Journal 2021,9 (5)

Wheat MADS-box gene TaSEP3-D1 negatively regulates heading date

作  者：
Lei Zhang;Hao Zhang;Liang Qiao;Ling-Feng Miao;Yuchen Dong;Pan Liu;Guangyao Zhao;Jizeng Jia;Lifeng Ga
单  位：
Department of Biology, Taiyuan Normal University, Taiyuan 030031, Shanxi, China; Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China;Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, Chin;Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081, China;College of Agronomy, Shanxi Agricultural University, Taiyuan 030031, Shanxi, China
关键词：
Agronomic traits;Haplotypes;Triticum aestivum;EXPRESSION ANALYSIS;HOMEOTIC GENES;FLOWERING TIME;PLANT HEIGHT;ARABIDOPSIS;WEIGHT;FAMIL
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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