Characterization of HSP70 family in watermelon ( Citrullus lanatus ): identification, structure, evolution, and potential function in response to ABA, cold and drought stress

Watermelon ( ) as a crop with important economic value, is widely cultivated around the world. The heat shock protein 70 (HSP70) family in plant is indispensable under stress conditions. However, no comprehensive analysis of watermelon family is reported to date. In this study, 12 genes were identif...

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Bibliographic Details
Published in:Frontiers in genetics 2023-05, Vol.14, p.1201535-1201535
Main Authors: Wang, Xinsheng, Jin, Zhi, Ding, Yina, Guo, Meng
Format: Article
Language:English
Subjects:
ABA
abiotic stress
expression pattern
Genetics
genome-wide analysis
heat shock proteins
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Summary:Watermelon ( ) as a crop with important economic value, is widely cultivated around the world. The heat shock protein 70 (HSP70) family in plant is indispensable under stress conditions. However, no comprehensive analysis of watermelon family is reported to date. In this study, 12 genes were identified from watermelon, which were unevenly located in 7 out of 11 chromosomes and divided into three subfamilies. ClHSP70 proteins were predicted to be localized primarily in cytoplasm, chloroplast, and endoplasmic reticulum. Two pairs of segmental repeats and 1 pair of tandem repeats existed in genes, and underwent strong purification selection. There were many abscisic acid (ABA) and abiotic stress response elements in promoters. Additionally, the transcriptional levels of in roots, stems, true leaves, and cotyledons were also analyzed. Some of genes were also strongly induced by ABA. Furthermore, also had different degrees of response to drought and cold stress. The above data indicate that may be participated in growth and development, signal transduction and abiotic stress response, laying a foundation for further analysis of the function of ClHSP70s in biological processes.
ISSN:1664-8021
1664-8021
DOI:10.3389/fgene.2023.1201535