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

文献类型： 外文期刊

作者： An, Jie 1 ; Fang, Chao 2 ; Yuan, Zhihui 1 ; Hu, Quan 1 ; Huang, Wenxuan 1 ; Li, Haiyang 2 ; Ma, Ruirui 1 ; Wang, Lingshuang 2 ; Su, Tong 2 ; Li, Shichen 2 ; Wang, Lindong 1 ; Duan, Yan 1 ; Wang, Yongqi 1 ; Zhang, Chunbao 3 ; Xu, Ran 4 ; Zhang, Dajian 5 ; Cao, Yuman 6 ; Hou, Jingjing 1 ; Kong, Fanjiang 2 ; Sun, Lianjun 1 ;

作者机构： 1.China Agr Univ, Coll Agron & Biotechnol, State Key Lab Agrobiotechnol, Beijing 100193, Peoples R China

2.Guangzhou Univ, Innovat Ctr Mol Genet & Evolut, Sch Life Sci, Guangdong Key Lab Plant Adaptat & Mol Design, Guangzhou 510006, Peoples R China

3.Jilin Acad Agr Sci, Soybean Res Inst, Changchun 130033, Peoples R China

4.Shandong Acad Agr Sci, Crop Res Inst, Jinan 250100, Shandong, Peoples R China

5.Shandong Agr Univ, Coll Agron, Tai An 271018, Shandong, Peoples R China

6.Northwest A&F Univ, Coll Grassland Agr, Yangling 712100, Peoples R China

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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