Genome-wide identification, phylogenetic, structural and functional evolution of the core components of ABA signaling in plant species: a focus on rice
文献类型： 外文期刊
作者： Lan, Yanhong 1 ; Song, Yao 2 ; Liu, Mengjia 1 ; Luo, Dening 3 ;
作者机构： 1.Sichuan Acad Agr Sci, Hort Res Inst, Vegetable Germplasm Innovat & Variety Improvement, Chengdu 610066, Peoples R China
2.Sichuan Univ, Coll Life Sci, Microbiol & Metab Engn Key Lab Sichuan Prov, Key Lab Bioresources & Ecoenvironm,Minist Educ, Chengdu 610065, Sichuan, Peoples R China
3.Chengdu Univ Informat Technol, Sch Automat, Chengdu 610255, Peoples R China
关键词： Collinearity analysis; Divergence; Evolution; Expansion; Phylogenetic analysis; Whole-genome replication
期刊名称：PLANTA （ 影响因子：3.6； 五年影响因子：4.3 ）
ISSN： 0032-0935
年卷期： 2024 年 260 卷 3 期
页码：
收录情况： SCI
摘要： Main conclusionA genome-wide analysis had identified 642 ABA core component genes from 20 plant species, which were further categorized into three distinct subfamilies. The gene structures and evolutionary relationships of these genes had been characterized. PP2C_1, PP2C_2, and SnRK2_1 had emerged as key players in mediating the ABA signaling transduction pathway, specifically in rice, in response to abiotic stresses.AbstractThe plant hormone abscisic acid (ABA) is essential for growth, development, and stress response, relying on its core components, pyrabactin resistance, pyrabactin resistance-like, and the regulatory component of ABA receptor (PYR/PYL/RCAR), 2C protein phosphatase (PP2C), sucrose non-fermenting-1-related protein kinase 2 (SnRK2). However, there's a lack of research on their structural evolution and functional differentiation across plants. Our study analyzed the phylogenetic, gene structure, homology, and duplication evolution of this complex in 20 plant species. We found conserved patterns in copy number and homology across subfamilies. Segmental and tandem duplications drove the evolution of these genes, while whole-genome duplication (WGD) expanded PYR/PYL/RCAR and PP2C subfamilies, enhancing environmental adaptation. In rice and Arabidopsis, the PYR/PYL/RCAR, PP2C, and SnRK2 genes showed distinct tissue-specific expression and responded to various stresses. Notably, PP2C_1 and PP2C_2 interacted with SnRK2_1 and were crucial for ABA signaling in rice. These findings offered new insights into ABA signaling evolution, interactions, and integration in green plants, benefiting future research in agriculture, evolutionary biology, ecology, and environmental science.
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