数字农科院2.0

In silico characterization and expression profiles of heat shock transcription factors (Hsfs) in maize (zea mays l.)

文献类型： 外文期刊

作者： Saqlain Haider;Shazia Rehman;Yumna Ahmad;Ali Raza;Javaria Tabassum;Talha Javed;Hany S. Osman;Tariq Mahmood

作者机构：

关键词： Abiotic stress;Gene ontology;Genomics;HSFs;Maize breeding;Protein 3D structures

期刊名称： Agronomy

ISSN： 2073-4395

年卷期： 2021 年 11 卷 11 期

页码：

收录情况： JCR（2021版）

摘要： Heat shock transcription factors (HSFs) regulate many environmental stress responses and biological processes in plants. Maize (Zea mays L.) is a major cash crop that is grown worldwide. However, the growth and yield of maize are affected by several adverse environmental stresses. Therefore, investigating the factors that regulate maize growth and development and resistance to abiotic stress is an essential task for developing stress‐resilient maize varieties. Thus, a comprehensive genome‐wide identification analysis was performed to identify HSFs genes in the maize genome. The current study identified 25 ZmHSFs, randomly distributed throughout the maize genome. Phylogenetic analysis revealed that ZmHSFs are divided into three classes and 13 sub‐classes. Gene structure and protein motif analysis supported the results obtained through the phylogenetic analysis. Segmental duplication is shown to be responsible for the expansion of ZmHSFs. Most of the ZmHSFs are localized inside the nucleus, and the ZmHSFs which belong to the same group show similar physio‐chemical properties. Previously reported and publicly available RNA‐seq analysis revealed a major role of class A HSFs including ZmHSFA‐1a and ZmHSFA‐2a in all the maize growth stages, i.e., seed, vegetative, and reproductive development. Under abiotic stress conditions (heat, drought, cold, UV, and salinity), members of class A and B ZmHSFs are induced. Gene ontology and protein–protein interaction analysis indicated a major role of ZmHSFs in resistance to environmental stress and regulation of primary metabolism. To summarize, this study provides novel insights for functional studies on the ZmHSFs in maize breeding programs.

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