Comprehensive characterization and expression analysis of enzymatic antioxidant gene families in passion fruit (Passiflora edulis)

文献类型： 外文期刊

第一作者： Liang, Jianxiang

作者： Liang, Jianxiang;Lu, Lin;Chi, Ming;Shen, Mengqian;An, Chang;Chen, Shengzhen;Qin, Yuan;Zheng, Ping;Liang, Jianxiang;Zhang, Wenbin;Wang, Xiaomei;Liu, Ruoyu;Qin, Yuan;Zheng, Ping

作者机构：

期刊名称：ISCIENCE （ 影响因子：5.8； 五年影响因子：5.8 ）

ISSN：

年卷期： 2023 年 26 卷 11 期

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收录情况： SCI

摘要： Passion fruit, a valuable tropical fruit, faces climate-related growth challenges. Antioxidant enzymes are vital for both stress protection and growth regulation in plants. We first provided systemic analysis of enzymatic antioxidant gene families in passion fruit, identifying 90 members including 11 PeSODs, 45 PeAPXs, 8 PeCATs, 7 PeGPXs, 6 PeMDHARs, 8 PeDHARs, and 5 PeGRs. Gene members in each gene family with same subcellular localization showed closer phylogenetic relationship. Many antioxidant genes exhibited tissue-or developmental stage-specific expression patterns during floral and fruit development, with some widely expressed. Their co-expressed genes were linked to photosynthesis and energy meta-bolism, suggesting roles in protecting highly proliferating tissues from oxidative damage. Potential genes for enhancing temperature stress resistance were identified. The involvement of diverse regulatory factors including miRNAs, transcription factors, and CREs might contribute to the complex roles of antioxidant genes. This study informs future research on antioxidant genes and passion fruit breeding.

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