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Characterization of the NAC Transcription Factor in Passion Fruit (Passiflora edulis) and Functional Identification of PeNAC-19 in Cold Stress

文献类型： 外文期刊

作者： Xu, Yi 1 ; Li, Pengfei 4 ; Ma, Funing 1 ; Huang, Dongmei 1 ; Xing, Wenting 1 ; Wu, Bin 1 ; Sun, Peiguang 1 ; Xu, Binqiang 1 ; Song, Shun 1 ;

作者机构： 1.Chinese Acad Trop Agr Sci, Trop Crops Genet Resources Inst, State Key Lab Biol Breeding Trop Crops, Germplasm Repository Passiflora, Hainan 571101, Hainan, Peoples R China

2.Chinese Acad Trop Agr Sci, Sanya Res Inst, Sanya 571101, Peoples R China

3.Hainan Yazhou Bay Seed Lab, Sanya 571101, Peoples R China

4.Yunnan Agr Univ, Coll Trop Crops, Kunming 650201, Peoples R China

关键词： NAC transcription factor; passion fruit; abiotic stress; fruit maturity stage; gene expression

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 6 期

页码：

收录情况： SCI

摘要： The NAC (NAM, ATAF and CUC) gene family plays an important role in plant development and abiotic stress response. However, up to now, the identification and research of the NAC (PeNAC) family members of passion fruit are still lacking. In this study, 25 PeNACs were identified from the passion fruit genome, and their functions under abiotic stress and at different fruit-ripening stages were analyzed. Furthermore, we analyzed the transcriptome sequencing results of PeNACs under four various abiotic stresses (drought, salt, cold and high temperature) and three different fruit-ripening stages, and verified the expression results of some genes by qRT-PCR. Additionally, tissue-specific analysis showed that most PeNACs were mainly expressed in flowers. In particular, PeNAC-19 was induced by four various abiotic stresses. At present, low temperatures have seriously endangered the development of passion fruit cultivation. Therefore, PeNAC-19 was transformed into tobacco, yeast and Arabidopsis to study their function of resisting low temperature. The results show that PeNAC-19 responded to cold stress significantly in tobacco and Arabidopsis, and could improve the low temperature tolerance of yeast. This study not only improved the understanding of the PeNAC gene family characteristics and evolution, but also provided new insights into the regulation of the PeNAC gene at different stages of fruit maturation and abiotic stresses.

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