Genome-Wide Identification of the MPK Gene Family and Expression Analysis under Low-Temperature Stress in the Banana
文献类型： 外文期刊
作者： Fan, Zhengyang 1 ; Zhao, Bianbian 1 ; Lai, Ruilian 1 ; Wu, Huan 1 ; Jia, Liang 1 ; Zhao, Xiaobing 1 ; Luo, Jie 1 ; Huang, Yuji 1 ; Chen, Yukun 1 ; Lin, Yuling 1 ; Lai, Zhongxiong 1 ;
作者机构： 1.Fujian Agr & Forestry Univ, Inst Hort Biotechnol, Fuzhou 350002, Peoples R China
2.Fujian Acad Agr Sci, Fruit Res Inst, Fuzhou 350013, Peoples R China
关键词： banana; MAPK; low temperature stress; miR172
期刊名称：PLANTS-BASEL （ 影响因子：4.5； 五年影响因子：4.8 ）
ISSN：
年卷期： 2023 年 12 卷 16 期
页码：
收录情况： SCI
摘要： Mitogen-activated protein kinases (MAPKs and MPKs) are important in the process of resisting plant stress. In this study, 21,12,18, 16, and 10 MPKs were identified from Musa acuminata, Musa balbisiana, Musa itinerans, Musa schizocarpa, and Musa textilis, respectively. These MPKs were divided into Group A, B, C, and D. Phylogenetic analysis revealed that this difference in number was due to the gene shrinkage of the Group B subfamily of Musa balbisiana and Musa textilis. KEGG annotations revealed that K14512, which is involved in plant hormone signal transduction and the plant-pathogen interaction, was the most conserved pathway of the MPKs. The results of promoter cis-acting element prediction and focTR4 (Fusarium oxysporum f. sp. cubense tropical race 4) transcriptome expression analysis preliminarily confirmed that MPKs were relevant to plant hormone and biotic stress, respectively. The expression of MPKs in Group A was significantly upregulated at 4 degrees C, and dramatically, the MPKs in the root were affected by low temperature. miR172, miR319, miR395, miR398, and miR399 may be the miRNAs that regulate MPKs during low-temperature stress, with miR172 being the most critical. miRNA prediction and qRT-PCR results indicated that miR172 may negatively regulate MPKs. Therefore, we deduced that MPKs might coordinate with miR172 to participate in the process of the resistance to low-temperature stress in the roots of the banana. This study will provide a theoretical basis for further analysis of the mechanism of MPKs under low-temperature stress of bananas, and this study could be applied to molecular breeding of bananas in the future.
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