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Identification of EIL and ERF Genes Related to Fruit Ripening in Peach

文献类型： 外文期刊

作者： Zhou, Hui 1 ; Zhao, Lei 1 ; Yang, Qiurui 1 ; Amar, Mohamed Hamdy 1 ; Ogutu, Collins 1 ; Peng, Qian 1 ; Liao, Liao 1 ; Zha 1 ;

作者机构： 1.Chinese Acad Sci, Innovat Acad Seed Design, Wuhan Bot Garden, CAS Key Lab Plant Germplasm Enhancement & Special, Wuhan 430074, Peoples R China

2.Anhui Acad Agr Sci, Inst Hort, Key Lab Genet Improvement & Ecophysiol Hort Crops, Hefei 230031, Peoples R China

3.Univ Chinese Acad Sci, 19A Yuquanlu, Beijing 100049, Peoples R China

4.Chinese Acad Sci, Sino African Joint Res Ctr, Wuhan 430074, Peoples R China

5.Chinese Acad Sci, Core Bot Gardens, Ctr Econ Bot, Wuhan 430074, Peoples R China

关键词： Prunus persica; ethylene; ERF; EIL; fruit ripening

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.923； 五年影响因子：6.132 ）

ISSN：

年卷期： 2020 年 21 卷 8 期

页码：

收录情况： SCI

摘要： Peach (Prunus persica) is a climacteric fruit with a relatively short shelf life due to its fast ripening or softening process. Here, we report the association of gene families encoding ethylene insensitive-3 like (EIL) and ethylene response factor (ERF) with fruit ripening in peach. In total, 3 PpEILs and 12 PpERFs were highly expressed in fruit, with the majority showing a peak of expression at different stages. All three EILs could activate ethylene biosynthesis genes PpACS1 and PpACO1. One out of the 12 PpERFs, termed PpERF.E2, is a homolog of ripening-associated ERFs in tomato, with a consistently high expression throughout fruit development and an ability to activate PpACS1 and PpACO1. Additionally, four subgroup F PpERFs harboring the EAR repressive motif were able to repress the PpACO1 promoter but could also activate the PpACS1 promoter. Promoter deletion assay revealed that PpEILs and PpERFs could participate in transcriptional regulation of PpACS1 through either direct or indirect interaction with various cis-elements. Taken together, these results suggested that all three PpEILs and PpERF.E2 are candidates involved in ethylene biosynthesis, and EAR motif-containing PpERFs may function as activator or repressor of ethylene biosynthesis genes in peach. Our study provides an insight into the roles of EILs and ERFs in the fruit ripening process.

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