Subjects: Biology >> Botany >> Applied botany submitted time 2021-11-04 Cooperative journals: 《广西植物》
Abstract： WD40, as a transcription factor family, is widely involved in regulating plant growth, development, secondary metabolite accumulation and environmental adaptation. In order to explore the role of the WD40 family in the growth, development, secondary metabolite accumulation and tolerance, all the WD40 genes of Meconopsis horridula were identified in this study based on the full-length transcriptome sequencing data and conducted bioinformatics analysis of these genes and their encoded proteins. The results were as follows: A total of 19 WD40 genes were identified, and all the proteins included typical WD40 domain, the amino acid numbers and molecular weight of the protein encoded by WD40 genes were 109-758 and 11 830-84 130 kDa, respectively, and most of the proteins localized in the nucleus, and all proteins belonged to hydrophilic protein; Phylogenetic tree analysis showed that WD40 proteins of M. horridula were closely to Papaver somniferum and Macleaya cordata; The promoter region of WD40 gene contained different amounts of hormones or stress-response elements, suggesting that this family genes may be involved in the regulation of various biological processes, such as growth, development and secondary metabolite accumulation; The tertiary structure of WD40 proteins showed that these proteins evolved in different degrees during the evolutionary process. These results can provide a preliminary basis for further research on the specific mechanism of WD40 gene family in response to stress and secondary metabolite accumulation.
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