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Haplotype Analysis of GmSGF14 Gene Family Reveals Its Roles in Photoperiodic Flowering and Regional Adaptation of Soybean

文献类型： 外文期刊

作者： Jiang, Liwei 1 ; Wang, Peiguo 2 ; Jia, Hongchang 2 ; Wu, Tingting 2 ; Yuan, Shan 2 ; Jiang, Bingjun 2 ; Sun, Shi 2 ; Zhang, Yuxian 1 ; Wang, Liwei 2 ; Han, Tianfu 1 ;

作者机构： 1.Heilongjiang Bayi Agr Univ, Coll Agr, Daqing 163316, Peoples R China

2.Chinese Acad Agr Sci, Inst Crop Sci, MARA Key Lab Soybean Biol Beijing, 12 Zhongguancun South St, Beijing 100081, Peoples R China

3.Gansu Agr Univ, Coll Agron, Dept Crop Genet & Breeding, Lanzhou 730070, Peoples R China

4.Heilongjiang Acad Agr Sci, Heihe Branch, Heihe 164399, Peoples R China

关键词： soybean; GmSGF14 gene family; photoperiodic flowering; haplotype analysis; geographical adaptation

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.6； 五年影响因子：6.2 ）

ISSN： 1661-6596

年卷期： 2023 年 24 卷 11 期

页码：

收录情况： SCI

摘要： Flowering time and photoperiod sensitivity are fundamental traits that determine soybean adaptation to a given region or a wide range of geographic environments. The General Regulatory Factors (GRFs), also known as 14-3-3 family, are involved in protein-protein interactions in a phosphorylation-dependent manner, thus regulating ubiquitous biological processes, such as photoperiodic flowering, plant immunity and stress response. In this study, 20 soybean GmSGF14 genes were identified and divided into two categories according to phylogenetic relationships and structural characteristics. Real-time quantitative PCR analysis revealed that GmSGF14g, GmSGF14i, GmSGF14j, GmSGF14k, GmSGF14m and GmSGF14s were highly expressed in all tissues compared to other GmSGF14 genes. In addition, we found that the transcript levels of GmSGF14 family genes in leaves varied significantly under different photoperiodic conditions, indicating that their expression responds to photoperiod. To explore the role of GmSGF14 in the regulation of soybean flowering, the geographical distribution of major haplotypes and their association with flowering time in six environments among 207 soybean germplasms were studied. Haplotype analysis confirmed that the GmSGF14m(H4) harboring a frameshift mutation in the 14-3-3 domain was associated with later flowering. Geographical distribution analysis demonstrated that the haplotypes related to early flowering were frequently found in high-latitude regions, while the haplotypes associated with late flowering were mostly distributed in low-latitude regions of China. Taken together, our results reveal that the GmSGF14 family genes play essential roles in photoperiodic flowering and geographical adaptation of soybean, providing theoretical support for further exploring the function of specific genes in this family and varietal improvement for wide adaptability.

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