WRKY transcription factors in passion fruit analysis reveals key PeWRKYs involved in abiotic stress and flavonoid biosynthesis
文献类型： 外文期刊
作者： Ma, Funing 1 ; Zhou, Hongwu 3 ; Yang, Huiting 3 ; Huang, Dongmei 1 ; Xing, Wenting 1 ; Wu, Bin 1 ; Li, Hongli 1 ; Hu, Wenbin 1 ; Song, Shun 1 ; Xu, Yi 1 ;
作者机构： 1.CATAS, Trop Crops Genet Resources Inst, Natl Key Lab Trop Crop Breeding,Germplasm Reposito, Key Lab Trop Crops Germplasm Resources Genet Impro, Haikou 571101, Peoples R China
2.Sanya Res Inst, Hainan Key Lab Biosafety Monitoring & Mol Breeding, Hainan Yazhou Bay Seed Lab, CATAS, Sanya 572025, Peoples R China
3.Yunnan Agr Univ, Kunming 650201, Yunnan, Peoples R China
关键词： Bioinformatics; Transcriptome; Metabolome
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.2； 五年影响因子：7.8 ）
ISSN： 0141-8130
年卷期： 2024 年 256 卷
页码：
收录情况： SCI
摘要： WRKY transcription factors (TFs) are a superfamily of regulators involved in plant responses to pathogens and abiotic stress. Passion fruit is famous for its unique flavor and nutrient-rich juice, but its growth is limited by environmental factors and pathogens. In this study, 55 WRKY genes were identified from the Passiflora edulis genome. The structure and evolutionary characteristics of PeWRKYs were analyzed using a bioinformatics approach. PeWRKYs were classified into seven subgroups (I, IIa, IIb, IIc, IId, IIe, III) according to their homologs in Arabidopsis thaliana. Group IIa PeWRKY48 gene was highly up-regulated under cold stress by RNA expression analysis, and transgenic PeWRKY48 in yeast and Arabidopsis showed resistance exposure to cold, salt, and drought stress. Metabolome and transcriptome co-expression analysis of two different disease resistance geno-types of P. edulis identified PeWRKY30 as a key TF co-expressed with flavonoid accumulation in yellow fruit P. edulis, which may contribute to biotic or abiotic resistance. The qRT-PCR verified the expression of key genes in different tissues of P. edulis and in different species of Passiflora. This study provides a set of WRKY candidate genes that will facilitate the genetic improvement of disease and abiotic tolerance in passion fruit.
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