1. Genome-wide identification, classification, expression profiling and DNA methylation (5mC) analysis of stress-responsive ZFP transcription factors in rice (Oryza sativa L.).
- Author
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Ahmad F, Farman K, Waseem M, Rana RM, Nawaz MA, Rehman HM, Abbas T, Baloch FS, Akrem A, Huang J, and Zhang H
- Subjects
- Genome-Wide Association Study, DNA Methylation physiology, DNA, Plant genetics, DNA, Plant metabolism, Gene Expression Profiling, Gene Expression Regulation, Plant physiology, Oryza genetics, Oryza metabolism, Plant Proteins classification, Plant Proteins genetics, Plant Proteins metabolism, Stress, Physiological physiology, Transcription Factors classification, Transcription Factors genetics, Transcription Factors metabolism
- Abstract
Cytosine DNA methylation (5mC) is an epigenetic mark that regulates gene expression in plant responses to environmental stresses. Zinc-finger protein (ZFP) is the largest family of DNA-binding transcription factors that also plays an essential role in eukaryote. In plant we have already identified and characterized different useful ZFP-genes. While, the main objective of this research was to observe and identify more targeted stress responsive genes of ZFPs epigenetically throughout genome in rice for the first time. A comprehensive correlation analysis was performed through methylated DNA immunoprecipitation (MeDIP)-chip hybridization in rice under salt and osmotic stresses. High salinity and drought are two major abiotic hazards that are destroying the crop world-wide. As a result, Through-out genome 14 unique stress responsive transcription factors of ZFP-genes with varying level of methylation and expression under two conditions (control vs. stress) were isolated. All the identified genes were confirmed from different databases for their specific structure, cis-regulatory elements, phylogenetic analysis, and synteny analysis. Moreover, the tissue-specific expression patterns, and expression under abiotic and phytohormones stresses were also investigated. Phylogenetically all the genes were divided into 6 distinct subgroups with Arabidopsis and orthologous proteins were find-out through synteny analysis. Available RNA-seq data in response to various phytohormones provided hormone inducible gene expression profile. Through Reverse Transcriptase qPCR (RT-qPCR) analysis tissue-specific expression in shoot and root over various time points against salt and osmotic stresses exhibited the diverse expression patterns of identified genes. Overall, the present study providing a foundation for in-depth characterization of identified genes and to further understand the epigenetic role of DNA methylation for genes expression and environmental stresses regulation in higher plant., (Copyright © 2019 Elsevier B.V. All rights reserved.)
- Published
- 2019
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