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Identification, Expression, and Interaction Network Analyses of the CDPK Gene Family Reveal Their Involvement in the Development, Ripening, and Abiotic Stress Response in Banana

文献类型： 外文期刊

作者： Li, Meiying 1 ; Hu, Wei 1 ; Ren, Licheng 2 ; Jia, Caihong 1 ; Liu, Juhua 1 ; Miao, Hongxia 1 ; Guo, Anping 1 ; Xu, Biyu 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Key Lab Biol & Genet Resources Trop Crops, Haikou 571101, Hainan, Peoples R China

2.Hainan Med Coll, Dept Biol, Haikou, Hainan, Peoples R China

3.Chinese Acad Trop Agr Sci, Key Lab Genet Improvement Bananas, Haikou Expt Stn, Haikou, Hainan, Peoples R China

关键词： Banana; CDPK family; Fruit development; Ripening; Abiotic stress

期刊名称：BIOCHEMICAL GENETICS （ 影响因子：1.89； 五年影响因子：1.959 ）

ISSN： 0006-2928

年卷期： 2020 年 58 卷 1 期

页码：

收录情况： SCI

摘要： Calcium-dependent protein kinases (CDPKs) play vital roles in the regulation of plant growth, development, and tolerance to various abiotic stresses. However, little information is available for this gene family in banana. In this study, 44 CDPKs were identified in banana and were classified into four groups based on phylogenetic, gene structure, and conserved motif analyses. The majority of MaCDPKs generally exhibited similar expression patterns in the different tissues. Transcriptome analyses revealed that many CDPKs showed strong transcript accumulation at the early stages of fruit development and postharvest ripening in both varieties. Interaction network and co-expression analysis further identified some CDPKs-mediated network that was potentially active at the early stages of fruit development. Comparative expression analysis suggested that the high levels of CDPK expression in FJ might be related to its fast ripening characteristic. CDPK expression following the abiotic stress treatments indicated a significant transcriptional response to osmotic, cold, and salt treatment, as well as differential expression profiles, between BX and FJ. The findings of this study elucidate the transcriptional control of CDPKs in development, ripening, and the abiotic stress response in banana. Some tissue-specific, development/ripening-dependent, and abiotic stress-responsive candidate MaCDPK genes were identified for further genetic improvement of banana.

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