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Identification and Characterization of SnRK2 Gene Family in Melon
LIU Chenggong, LI He, HAN Zichao, SU Tingting, ZHANG Yueyang, ZHANG Yao, LI Zhongqing, WANG Aiying , ZHU Jianbo
Journal of Henan Agricultural Sciences
2022, 51 (5):
108-116.
DOI: 10.15933/j.cnki.1004-3268.2022.05.011
Sucrose non‑fermenting‑1‑related protein kinase2(SnRK2)is a kind of protein phosphorylase with serine/threonine specific domain,which plays an important role in ABA signal transduction and abiotic stress.Taking melon as the research object,this paper used bioinformatics analysis methods to identify melon SnRK2 gene family and analyze the relevant characteristics,including the construction of phylogenetic evolutionary tree,analyses of gene physical and chemical properties,gene structure and conserved domain,dhromosome location,collinearity,upstream cis‑acting elements of gene and transcriptome data heat map analysis to lay a theoretical foundation for the functional analysis and research of melon SnRK2 genes.Results showed that nine SnRK2 gene family members were identified in melon genome. It was mainly located in the cytoskeleton,dominated by α‑helix and random coil.The molecular weight was 31.49—75.02 ku,and the isoelectric point ranged from 4.42 to 6.21.It could be divided into three subgroups,distributed on four chromosomes. Promoter analysis showed that there were multiple plant hormones and stress‑related response elements in the regulatory sequence of melon SnRK2 genes.Tissue expression analysis showed that some melon SnRK2 genes were constitutively expressed in different tissues,while some genes had significant tissue specificity.
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