Identification of DREB Family Genes in Banana and Their Function under Drought and Cold Stress
文献类型： 外文期刊
作者： Xu, Yi 1 ; Zhang, Yanshu 1 ; Ma, Funing 2 ; Zhao, Jingxi 2 ; Yang, Huiting 2 ; Song, Shun 2 ; Zhang, Shaoling 1 ;
作者机构： 1.Nanjing Agr Univ, Sanya Inst, Coll Hort, State Key Lab Crop Genet & Germplasm Enhancement, Nanjing 210095, Peoples R China
2.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, State Key Lab Biol Breeding Trop Crops, Haikou 571101, Peoples R China
3.Minist Agr & Rual Affairs, Lab Crop Gene Resources & Germplasm Enhancement So, Key Lab Trop Crops Germplasm Resources Genet Impro, Haikou 571101, Peoples R China
4.Hainan Seed Ind Lab, Sanya 572000, Peoples R China
5.Chinese Acad Trop Agr Sci, Sanya Res Inst, Hainan Key Lab Biosafety Monitoring & Mol Breeding, Sanya 572000, Peoples R China
关键词： genome-wide; DREB; climate change; drought; cold
期刊名称：PLANTS-BASEL （ 影响因子：4.0； 五年影响因子：4.4 ）
ISSN： 2223-7747
年卷期： 2024 年 13 卷 15 期
页码：
收录情况： SCI
摘要： Bananas are one of the most important cash crops in the tropics and subtropics. Drought and low-temperature stress affect the growth of banana. The DREB (dehydration responsive element binding protein) gene family, as one of the major transcription factor families, plays crucial roles in defense against abiotic stress. Currently, systematic analyses of the banana DREB (MaDREB) gene family have not yet been reported. In this study, 103 members of the MaDREB gene family were identified in the banana genome. In addition, transcriptomic analysis results revealed that MaDREBs responded to drought and cold stress. The expression of MaDREB14/22/51 was induced by drought and cold stress; these geneswere selected for further analysis. The qRT-PCR validation results confirmed the transcriptome results. Additionally, transgenic Arabidopsis plants overexpressing MaDREB14/22/51 exhibited enhanced resistance to drought and cold stress by reducing MDA content and increasing PRO and soluble sugar content. This study enhances our understanding of the function of the MaDREB gene family, provides new insights into their regulatory role under abiotic stress, and lays a good foundation for improving drought and cold stress-tolerant banana verities.
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