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Article Abstract
Small heat shock proteins (HSP20s) are a significant factor in plant growth and development in response to abiotic stress. In this study, we investigated the role of HSP20s' response to the heat stress of introduced into low-altitude areas. The gene family was identified based on the genome-wide data of , and the expression patterns of tissue specificity and the response to abiotic stresses were evaluated. Finally, we identified 38 genes that were distributed on 16 chromosomes. Phylogenetic analysis of HSP20s showed that the closest genetic relationship to (SpHSP20s) is , followed by and . According to phylogenetic analysis and subcellular localization prediction, the 38 SpHSP20s belonged to 10 subfamilies. Analysis of the gene structure and conserved motifs indicated that gene family members are relatively conserved. Synteny analysis showed that the expansion of the gene family was mainly caused by segmental duplication. In addition, many cis-acting elements connected with growth and development, hormones, and stress responsiveness were found in the promoter region. Analysis of expression patterns showed that these genes were closely related to high temperature, drought, salt, growth, and developmental processes. These results provide information and a theoretical basis for the exploration of gene family resources, as well as the domestication and genetic improvement of .
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| http://dx.doi.org/10.3390/genes13122241 | DOI Listing |
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