Genome-Wide Identification of 14-3-3 gene family reveals their diverse responses to abiotic stress by interacting with StABI5 in Potato ( Solanum tuberosum L .).
Frontiers in plant science(2022)
摘要
The genes are widely present in plants and participate in a wide range of cellular and physiological processes. In the current study, twelve were identified from potato genome. According to phylogenetic evolutionary analysis, potato were divided into ϵ and non-ϵ groups. Conserved motif and gene structure analysis displayed a distinct class-specific divergence between the ϵ group and non-ϵ group. Multiple sequence alignments and three-dimensional structure analysis of 14-3-3 proteins indicated all the members contained nine conservative antiparallel α-helices. The majority of had transcript accumulation in each detected potato tissue, implying their regulatory roles across all stages of potato growth and development. Numerous cis-acting elements related to plant hormones and abiotic stress response were identified in the promoter region of potato , and the transcription levels of these genes fluctuated to different degrees under exogenous ABA, salt and drought stress, indicating that potato may be involved in different hormone signaling pathways and abiotic stress responses. In addition, eight potato 14-3-3s were shown to interact with StABI5, which further demonstrated that potato 14-3-3s were involved in the ABA-dependent signaling pathway. This study provides a reference for the identification of the 14-3-3 gene family in other plants, and provides important clues for cloning potential candidates in response to abiotic stresses in potato.
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关键词
14-3-3 gene family,StABI5,abiotic stress,abscisic acid,potato
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