文献类型： 外文期刊

作者： Hu, Yang ¹ ; Liu, Yue ¹ ; Lu, Long ¹ ; Tao, Jian-Jun ¹ ; Cheng, Tong ¹ ; Jin, Meng ¹ ; Wang, Zhou-Ya ¹ ; Wei, Jun-Jie ¹ ; Jiang, Zhi-Hao ¹ ; Sun, Wan-Cai ³ ; Liu, Cheng-Lan ³ ; Gao, Feng ³ ; Zhang, Yong ⁴ ; Li, Wei ⁵ ; Bi, Ying-Dong ⁵ ; Lai, Yong-Cai ⁵ ; Zhou, Bin ⁶ ; Yu, De-Yue ⁷ ; Yin, Cui-Cui ¹ ; Wei, Wei ¹ ; Zhang, Wan-Ke ¹ ; Chen, Shou-Yi ¹ ; Zhang, Jin-Song ¹ ;

作者机构： 1.Chinese Acad Sci, Inst Genet & Dev Biol Innovat Acad Seed Design, State Key Lab Plant Genom, Beijing 100101, Peoples R China

2.Univ Chinese Acad Sci, Coll Adv Agr Sci, Beijing 100049, Peoples R China

3.Qilu Zhongke Acad Modern Microbiol Technol, Jinan 250018, Peoples R China

4.Heilongjiang Acad Agr Sci, Keshan Branch, Qiqihar 161000, Peoples R China

5.Heilongjiang Acad Agr Sci, Crop Tillage & Cultivat Inst, Harbin 150086, Peoples R China

6.Anhui Acad Agr Sci, Crop Res Inst, Hefei 230031, Peoples R China

7.Nanjing Agr Univ, Natl Ctr Soybean Improvement, Jiangsu Collaborat Innovat Ctr Modern Crop Prod, Natl Key Lab Crop Genet & Germplasm Enhancement, Nanjing 210095, Peoples R China

关键词： cell cycle; gibberellin; PLATZ; seed size; seed weight; soybean

期刊名称：NEW PHYTOLOGIST （ 影响因子：9.4； 五年影响因子：10.5 ）

ISSN： 0028-646X

年卷期： 2023 年

页码：

收录情况： SCI

摘要： Seed size and weight are important factors that influence soybean yield.Combining the weighted gene co-expression network analysis (WGCNA) of 45 soybean accessions and gene dynamic changes in seeds at seven developmental stages, we identified candidate genes that may control the seed size/weight. Among these, a PLATZ-type regulator overlapping with 10 seed weight QTLs was further investigated. This zinc-finger transcriptional regulator, named as GmPLATZ, is required for the promotion of seed size and weight in soybean.The GmPLATZ may exert its functions through direct binding to the promoters and activation of the expression of cyclin genes and GmGA20OX for cell proliferation. Overexpression of the GmGA20OX enhanced seed size/weight in soybean. We further found that the GmPLATZ binds to a 32-bp sequence containing a core palindromic element AATGCGCATT. Spacing of the flanking sequences beyond the core element facilitated GmPLATZ binding. An elite haplotype Hap3 was also identified to have higher promoter activity and correlated with higher gene expression and higher seed weight. Orthologues of the GmPLATZ from rice and Arabidopsis play similar roles in seeds.Our study reveals a novel module of GmPLATZ-GmGA20OX/cyclins in regulating seed size and weight and provides valuable targets for breeding of crops with desirable agronomic traits.