文献类型： 外文期刊
作者： Liu, Jinyang 1 ; Xue, Chenchen 1 ; Lin, Yun 1 ; Yan, Qiang 1 ; Chen, Jingbin 1 ; Wu, Ranran 1 ; Zhang, Xiaoyan 1 ; Chen, Xin 1 ; Yuan, Xingxing 1 ;
作者机构： 1.Jiangsu Acad Agr Sci, Inst Ind Crops, Jiangsu Key Lab Hort Crop Genet Improvement, Nanjing 210014, Jiangsu, Peoples R China
关键词： Mungbean; GWAS; Salt tolerance traits; RNA-Seq; VrFRO8
期刊名称：GENE （ 影响因子：3.913； 五年影响因子：3.48 ）
ISSN： 0378-1119
年卷期： 2022 年 836 卷
页码：
收录情况： SCI
摘要： Mungbean (Vigna radiata (L.) R. Wilczek) is an important legume crop of Asia. Salt concentrations typically causes major yield reductions in mungbean. Although the biochemical and genetic basis of salt tolerance-related gene are well studied in Arabidopsis and soybean, limited information concerning the salt tolerance-related genes in mungbean. To address this issue, we mined salt tolerance related genes using the survival rate trait and 160,1405 SNPs in 112 mungbean accessions. As a result, VrFRO8 significantly associated with salt-stress were identified in the GWAS analysis. The candidate gene VrFRO8 was evidenced by comparative genomics, transcriptome and RT-qPCR analysis. The expression level of VrFRO8 was significantly up-regulated (P-value = 0.001) after salt treatment compared with the control group. Moreover, 188 genes and 158 transcription factors related to salt-stress signal transduction pathway were mined, and 18 genes (18/188) had higher expression level in the salt-tolerant varieties than salt-sensitive varieties. And, the function of VrFRO8 was predicted in mungbean, the protein interaction between VrFRO8 and seven related-genes were found by molecular structure analysis. VrFRO8 might reduce SOD contents by influence Fe2+/Fe3+ ratio under the damage of salt stress. This study used multi-omics data to mine a key genes significantly associated with salt tolerance, and constructed a VrFRO8-related PPI network for salt tolerance, which would lay a solid foundation for further molecular biology research of VrFRO8 and mungbean breeding.
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