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Genome-wide investigation of the PYL genes in Acer palmatum and their role in freezing tolerance

文献类型： 外文期刊

作者： Zhu, Lu 1 ; Yan, Kunyuan 1 ; Ren, Jie 2 ; Chen, Zhu 2 ; Ma, Qiuyue 1 ; Du, Yiming 1 ; Wang, Yuelan 3 ; Li, Shushun 1 ; Li, Qianzhong 1 ;

作者机构： 1.Jiangsu Acad Agr Sci, Inst Leisure Agr, Jiangsu Key Lab Hort Crop Genet Improvement, 50 Zhongling St, Nanjing 210014, Jiangsu, Peoples R China

2.Anhui Acad Agr Sci, Inst Agr Engn, 40 Nongke South Rd, Hefei 230031, Anhui, Peoples R China

3.Chenshi Maples Nursery, Huzhou 313308, Zhejiang, Peoples R China

关键词： Acer palmatum; PYL transcription factor; ABA; Expression profile; Freezing tolerance

期刊名称：INDUSTRIAL CROPS AND PRODUCTS （ 影响因子：5.9； 五年影响因子：6.0 ）

ISSN： 0926-6690

年卷期： 2024 年 210 卷

页码：

收录情况： SCI

摘要： As the direct recipients of plant abscisic acid (ABA), pyrabactin resistance/pyrabactin resistance-like/regulatory component of ABA receptor proteins (PYR/PYL/RCAR; hereinafter called PYLs) play pivotal roles in plant coercive responses. However, the PYL genes in Acer palmatum have yet to be investigated. In this study, using a genome search method, we identified 14 A. palmatum PYL genes (ApPYLs) and clustered them into three clades based on the phylogenetic, gene structure, and conserved motif analyses. The ApPYLs were dispersed on eight chromosomes of A. palmatum; cis-acting element analysis indicated that the ApPYLs were involved in biological processes, including resistance, hormone regulation, and growth. Gene expression profiling of cold-treated A. palmatum plants revealed that ApPYL1 and ApPYL2 may be related to cold stress response. ApPYL1 and ApPYL2 interacted directly with ApMYB44, and the ApPYL1, ApPYL2, and ApMYB44 genes were found to enhance freezing tolerance in Arabidopsis. These findings illustrate that ApPYL1 and ApPYL2 respond to the cold signalling pathway by interacting with ApMYB44 and provide a reference for improving cold resistance of plants.

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