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

文献类型： 外文期刊

第一作者： Li, Yongli

作者： Li, Yongli;Lu, Sijia;Gan, Zhuoran;Du, Hao;Li, Tai;Zhang, Yuhang;Kong, Fanjiang;He, Milan;Ma, Lixin;Liao, Chunmei;Li, Yaru;Dong, Lidong;Liu, Baohui;Cheng, Qun;Hou, Zhihong;Li, Weiwei;Li, Haiyang;Kong, Fanjiang;Liu, Baohui;Kong, Fanjiang;Liu, Baohui;Cheng, Yuhan

作者机构：

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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