Ethylene Signaling Pathway Genes in Strawberry and Their Expression Patterns during Fruit Ripening

文献类型： 外文期刊

第一作者： Zhang, Yunting

作者： Zhang, Yunting;Deng, Meiyi;Guo, Chenhui;Chen, Yan;Lin, Yuanxiu;Chen, Qing;Wang, Yan;Zhang, Yong;Luo, Ya;Wang, Xiaorong;Tang, Haoru;Gu, Xianjie

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关键词： strawberry; FaETRs; FaEIN3; EINs; fruit ripening

期刊名称：AGRONOMY-BASEL （ 影响因子：3.7； 五年影响因子：4.0 ）

ISSN：

年卷期： 2023 年 13 卷 7 期

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收录情况： SCI

摘要： Ethylene at least partly regulates some aspects during non-climacteric ripening in strawberry. However, the ethylene signaling pathway genes in the strawberry fruit have not been comprehensively and systematically analyzed. In the present study, 15 FaETRs and 14 FaEIN3/EINs were identified in the octoploid strawberry genome. Subcellular localization analysis predicted that FaETRs and FaEIN3/EINs are respectively localized to the endoplasmic reticulum and the nucleus. The phylogenetic trees showed that FaETRs were classified into two subgroups, while FaEIN3/EINs were divided into three clades, which was supported by gene structure and conserved motif analysis. FaETRs and FaEIN3/EINs could interact with several components, such as CTR1, RTE1, EIN2 and ERF1B, in the ethylene signaling pathway by protein-protein interaction network analysis. Transcriptomic data showed that FaETRs were mainly expressed at the early stage of fruit development in three strawberry cultivars. Additionally, a couple of FaETRs (FaETR2 and FaETR13) and FaEINs (FaEIN2 and FaEIN7) could be induced by 1 & mu;M ABA and inhibited by 100 & mu;M nordihydroguaiaretic acid (NDGA, an ABA biosynthesis blocker). These findings suggested that the FaETR- and FaEIN3/EIN-mediated ethylene signaling pathway might play a role in strawberry fruit ripening.

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