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Genome-wide identification of FAD gene family and their contributions to the temperature stresses and mutualistic and parasitic fungi colonization responses in banana

文献类型： 外文期刊

作者： Cheng, Chunzhen 1 ; Liu, Fan 2 ; Sun, Xueli 2 ; Wang, Bin 2 ; Liu, Jiapeng 2 ; Ni, Xueting 2 ; Hu, Chunhua 3 ; Deng, Guiming 3 ; Tong, Zheng 4 ; Zhang, Yongyan 1 ; Lu, Peitao 2 ;

作者机构： 1.Shanxi Agr Univ, Coll Hort, Taigu 030801, Peoples R China

2.Fujian Agr & Forestry Univ, Coll Hort, Fuzhou 350002, Peoples R China

3.Guangdong Acad Agr Sci, Inst Fruit Tree Res, Guangzhou 510640, Peoples R China

4.Chinese Acad Trop Agr Sci, Inst Trop Biosci & Biotechnol, Haikou 571101, Hainan, Peoples R China

关键词： Fatty acid desaturase gene family; Gene expression; Fatty acid biosynthesis

期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.025； 五年影响因子：7.626 ）

ISSN： 0141-8130

年卷期： 2022 年 204 卷

页码：

收录情况： SCI

摘要： Fatty acid desaturase (FAD) plays important roles in plant growth and development and plant defense processes. In this study, we identified 27 MaFAD genes from the banana genome. According to the amino acid sequence similarities, their encoded proteins could be classified into five subfamilies. This classification is consistently supported by their gene and protein structures, conserved motifs and subcellular localizations. Segmental duplication events were found to play predominant roles in the MaFAD gene family expansion. Thirty miRNAs targeting MaFADs were identified and many hormone- and stress-responsive cis-acting elements and transcription factor binding sites (TFBSs) were identified in their promoters, indicating that the MaFADs expression regulation was very complicated. Gene expression analysis showed that some MaFADs showed significant differential expression in response to high and low temperature. FocTR4 influenced greatly the expression of several MaFADs and greatly induced the fatty acid (FA) accumulations in roots. Although S. indica showed no significant influence on the expression of most MaFADs, it could greatly alleviate the influence of FocTR4 on several MaFADs and FA biosynthesis. Our study revealed that MaFADs contributed greatly to the responses of high and low temperature stresses and mutualistic and parasitic fungi colonization in banana.

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