College of Horticulture and Sichuan Agricultural University, Chengdu, China.
Institute of Pomology and Olericulture, Sichuan Agricultural University, Chengdu, China.
DNA Cell Biol. 2020 Nov;39(11):1990-2004. doi: 10.1089/dna.2020.5922. Epub 2020 Sep 18.
Heat shock transcription factor (HSF) is ubiquitous in the whole biological world and plays an important role in regulating growth and development and responses to environment stress. In this study, a total of 60 HSF transcription factors in genome were identified and analyzed. Phylogenetic analysis showed that HSF genes were divided into three groups namely: A, B, and C, of which group A was further divided into nine subgroups (A1-A9). The analysis of gene structure and conserved motifs showed that some homologous genes are highly conserved. There was strong conservative microcollinearity among , , and , which provides a basis for studying the replication of gene families. Moreover, the results revealed that the promoter regions of genes were rich in -elements related to growth and development, hormone signal, and stress response. The prediction of protein interaction results showed that HSFs could interact with multiple transcription factors and proteins in the genome, while functional annotation revealed that genes were involved in many biological processes. The expression patterns of genes were analyzed by qPCR, and the results showed that these genes were closely linked to stress response, hormones, and development process. These results are a foundation for further analysis of the regulation mechanism of HSF gene family.
热休克转录因子(HSF)在整个生物界中普遍存在,在调节生长发育和应对环境应激方面发挥着重要作用。本研究在基因组中鉴定和分析了 60 个 HSF 转录因子。系统发育分析表明,HSF 基因分为三组:A、B 和 C,其中 A 组进一步分为九个亚组(A1-A9)。基因结构和保守基序分析表明,一些同源基因高度保守。、和之间存在强烈的保守微共线性,这为研究基因家族的复制提供了依据。此外,结果表明,基因启动子区域富含与生长发育、激素信号和应激反应相关的 - 元件。蛋白相互作用预测结果表明,HSFs 可以与基因组中的多个转录因子和蛋白相互作用,而功能注释表明,基因参与了许多生物学过程。通过 qPCR 分析了基因的表达模式,结果表明这些基因与应激反应、激素和发育过程密切相关。这些结果为进一步分析 HSF 基因家族的调控机制奠定了基础。