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The legume-specific transcription factor E1 controls leaf morphology in soybean

文献类型： 外文期刊

作者： Li, Yongli 1 ; Hou, Zhihong 2 ; Li, Weiwei 3 ; Li, Haiyang 4 ; Lu, Sijia 1 ; Gan, Zhuoran 1 ; Du, Hao 1 ; Li, Tai 1 ; Zhang, 1 ;

作者机构： 1.Guangzhou Univ, Innovat Ctr Mol Genet & Evolut, Sch Life Sci, Guangzhou 516000, Peoples R China

2.Heilongjiang Bayi Agr Univ, Coll Agr, Daqing 163000, Peoples R China

3.Heilongjiang Acad Agr Sci, Keshan Branch, Keshan 161606, Peoples R China

4.Nanjing Agr Univ, Natl Ctr Soybean Improvement, Jiangsu Collaborat Innovat Ctr Modern Crop Prod, Natl Key Lab Crop Genet & Germplasm Enhancement, Nanjing 210000, Peoples R China

5.Chinese Acad Sci, Innovat Acad Seed Design, Northeast Inst Geog & Agroecol, Key Lab Soybean Mol Design Breeding, Harbin 150000, Peoples R China

6.Univ Chinese Acad Sci, Beijing 100000, Peoples R China

7.Beijing Int Urban Agr Sci & Technol Pk, Zhong Nong Fu Tong 100000, Beijng, Peoples R China

关键词： Soybean; E1; Transcription factor; Overexpression; Transgenic plant; Leaf development

期刊名称：BMC PLANT BIOLOGY （ 影响因子：4.215； 五年影响因子：4.96 ）

ISSN： 1471-2229

年卷期： 2021 年 21 卷 1 期

页码：

收录情况： SCI

摘要： Background The leaf is a determinate organ essential for photosynthesis, whose size and shape determine plant architecture and strongly affect agronomic traits. In soybean, the molecular mechanism of leaf development is not well understood. The flowering repressor gene E1, which encodes a legume-specific B3-like protein, is known to be the gene with the largest influence on soybean flowering and maturity. However, knowledge of its potential other functions remains poor. Results Here, we identified a novel function of E1 protein in leaf development. Unifoliolate leaves of E1-overexpression (E1-OE) lines were smaller and curlier than those of wild type DongNong 50 (DN50) and Williams 82 (W82). Transverse histological sections showed disorganized cells and significantly elevated palisade tissue number, spongy tissue number, and bulliform cell number in E1-OE lines. Our results indicate that E1 binds to the promoters of the leaf- development-related CINCINNATA (CIN)-like TEOSINTE BRANCHED1/CYCLOIDEA/PROLIFERATING CELL FACTOR (TCP) transcription factor genes to negatively regulate their expression. Conclusions Our findings identify E1 as an important new factor in soybean leaf development.

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