A retrotransposon insertion in the Mao1 promoter results in erect pubescence and higher yield in soybean

文献类型： 外文期刊

第一作者： An, Jie

作者： An, Jie;Yuan, Zhihui;Hu, Quan;Huang, Wenxuan;Ma, Ruirui;Wang, Lindong;Duan, Yan;Wang, Yongqi;Hou, Jingjing;Sun, Lianjun;Fang, Chao;Li, Haiyang;Wang, Lingshuang;Su, Tong;Li, Shichen;Kong, Fanjiang;Zhang, Chunbao;Xu, Ran;Zhang, Dajian;Cao, Yuman

作者机构：

关键词： soybean; pubescence form; yield; photosynthesis

期刊名称：PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA （ 影响因子：11.1； 五年影响因子：12.0 ）

ISSN： 0027-8424

年卷期： 2023 年 120 卷 13 期

页码：

收录情况： SCI

摘要： Adaptive changes in crops contribute to the diversity of agronomic traits, which directly or indirectly affect yield. The change of pubescence form from appressed to erect is a notable feature during soybean domestication. However, the biologi-cal significance and regulatory mechanism underlying this transformation remain largely unknown. Here, we identified a major-effect locus, PUBESCENCE FORM 1 (PF1), the upstream region of Mao1, that regulates pubescence form in soybean. The insertion of a Ty3/Gypsy retrotransposon in PF1 can recruit the transcription factor GAGA-binding protein to a GA-rich region, which up-regulates Mao1 expres-sion, underpinning soybean pubescence evolution. Interestingly, the proportion of improved cultivars with erect pubescence increases gradually with increasing lati-tude, and erect-pubescence cultivars have a higher yield possibly through a higher photosynthetic rate and photosynthetic stability. These findings open an avenue for molecular breeding through either natural introgression or genome editing toward yield improvement and productivity.

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