Genome-wide analysis of PYL-PP2C-SnRK2s family in Camellia sinensis

作者：Ping Xu, Xueying Zhang, Hui Su, Xiaofen Liu, Yuefei Wang, Gaojie Hong · 发表于：Bioengineered · 年份：2020 · DOI：10.1080/21655979.2019.1710932 · 被引用次数：60 · 研究领域：Plant Gene Expression Analysis、Plant Stress Responses and Tolerance、Plant Molecular Biology Research

Abscisic acid (ABA) signaling regulates plant growth and development and participates in response to abiotic stressors. However, details about the PYL-PP2C-SnRK2 gene family, which is the core component of ABA signaling in Camellia sinensis, are unknown. In this work, we identified 14 pyrabactin resistance-likes (PYLs), 84 type 2C protein phosphatase (PP2Cs), and 8 SNF1-related protein kinase 2s (SnRK2s) from C. sinensis. The transcriptomic analysis indicated that PYL-PP2C-SnRK2s were associated with changes of leaf color and the response of C. sinensis to drought and salt stressors. Changes of the expression of Snrk2s were not significant in the process of leaf color change or drought and salt stress response, suggesting that PYLs and PP2Cs may not interact with SnRK2s in C. sinensis during these processes. Finally, Gene Regulatory Network (GRN) construction and interaction networks analysis demonstrated that PYLs and PP2Cs were associated with multiple metabolic pathways during the changes of leaf color.