文献类型： 外文期刊

作者： Kou, Kun ¹ ; Yang, Hui ¹ ; Li, Haiyang ³ ; Fang, Chao ¹ ; Chen, Liyu ¹ ; Yue, Lin ¹ ; Nan, Haiyang ¹ ; Kong, Lingping ¹ ; Li, Xiaoming ⁴ ; Wang, Fan ¹ ; Wang, Jianhao ¹ ; Du, Haiping ¹ ; Yang, Zhongyi ³ ; Bi, Yingdong ⁶ ; Lai, Yongcai ⁶ ; Dong, Lidong ¹ ; Cheng, Qun ¹ ; Su, Tong ¹ ; Wang, Lingshuang ¹ ; Li, Shichen ¹ ; Hou, Zhihong ⁷ ; Lu, Sijia ¹ ; Zhang, Yuhang ¹ ; Che, Zhijun ¹ ; Yu, Deyue ³ ; Zhao, Xiaohui ¹ ; Liu, Baohui ¹ ; Kong, Fanjiang ¹ ;

作者机构： 1.Guangzhou Univ, Sch Life Sci, Innovat Ctr Mol Genet & Evolut, Guangzhou 510405, Peoples R China

2.Chinese Acad Sci, Northeast Inst Geog & Agroecol, Key Lab Soybean Mol Design Breeding, Innovat Acad Seed Design, Harbin 150081, Peoples R China

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

4.Chinese Acad Sci, Innovat Acad Seed Design, South China Bot Garden, Key Lab South China Agr Plant Mol Anal & Genet Im, Guangzhou 510650, Peoples R China

5.Chinese Acad Sci, Innovat Acad Seed Design, South China Bot Garden, Guangdong Prov Key Lab Appl Bot, Guangzhou 510650, Peoples R China

6.Heilongjiang Acad Agr Sci, Inst Crops Tillage & Cultivat, Harbin 150086, Peoples R China

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

期刊名称：CURRENT BIOLOGY （ 影响因子：10.9； 五年影响因子：12.621 ）

ISSN： 0960-9822

年卷期： 2022 年 32 卷 8 期

页码：

收录情况： SCI

摘要： Soybean (Glycine max) grows in a wide range of latitudes, but it is extremely sensitive to photoperiod, which reduces its yield and ability to adapt to different environments. Therefore, understanding of the genetic basis of soybean adaptation is of great significance for breeding and improvement. Here, we characterized Tof18 (SOC1a) that conditions early flowering and growth habit under both short-day and long-day conditions. Molecular analysis confirmed that the two SOC1 homologs present in soybeans (SOC1a and SOC1b) underwent evolutionary functional divergence, with SOC1a having stronger effects on flowering time and stem node number than SOC1b due to transcriptional differences. soc1a soc1b double mutants showed stronger functional effects than either of the single mutants, perhaps due to the formation of SOC1a and SOC1b homodimers or heterodimers. Additionally, Tof18/SOC1a improves the latitudinal adaptation of cultivated soybeans, highlighting the functional importance of SOC1a. The Tof18 G allele facilitates adaptation to high latitudes, whereas Tof18(A) facilitates adaptation to low latitudes. We demonstrated that SOC1s contribute to floral induction in both leaves and shoot apex through inter-regulation with FTs. The SOC1a-SOC1b-Dt2 complex plays essential roles in stem growth habit by directly binding to the regulatory sequence of Dt1, making the genes encoding these proteins potential targets for genome editing to improve soybean yield via molecular breeding. Since the natural Tof18(A) allele increases node number, introgressing this allele into modern cultivars could improve yields, which would help optimize land use for food production in the face of population growth and global warming.