Global Integrated Genomic and Transcriptomic Analyses of MYB Transcription Factor Superfamily in C3 Model Plant Oryza sativa (L.) Unravel Potential Candidates Involved in Abiotic Stress Signaling

Pandiyan Muthuramalingam, Rajendran Jeyasri, Anthonymuthu Selvaraj, Hyunsuk Shin, Jen Tsung Chen, Lakkakula Satish, Qiang Sheng Wu, Manikandan Ramesh

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Plant transcription factors (TFs) are significant players in transcriptional regulations, signal transduction, and constitute an integral part of signaling networks. MYB TFs are major TF superfamilies that play pivotal roles in regulation of transcriptional reprogramming, physiological processes, and abiotic stress (AbS) responses. To explore the understanding of MYB TFs, genome and transcriptome-wide identification was performed in the C3 model plant, Oryza sativa (OsMYB). This study retrieved 114 OsMYB TFs that were computationally analyzed for their expression profiling, gene organization, cis-acting elements, and physicochemical properties. Based on the microarray datasets, six OsMYB genes which were sorted out and identified by a differential expression pattern were noted in various tissues. Systematic expression profiling of OsMYB TFs showed their meta-differential expression of different AbS treatments, spatio-temporal gene expression of various tissues and their growth in the field, and gene expression profiling in responses to phytohormones. In addition, the circular ideogram of OsMYB genes in related C4 grass plants conferred the gene synteny. Protein–protein interactions of these genes revealed the molecular crosstalk of OsMYB TFs. Transcriptional analysis (qPCR) of six OsMYB players in response to drought and salinity stress suggested the involvement in individual and combined AbS responses. To decipher how these OsMYB play functional roles in AbS dynamics, further research is a prerequisite.

Original languageEnglish
Article number946834
JournalFrontiers in Genetics
Volume13
DOIs
StatePublished - 8 Jul 2022

Keywords

  • MYB
  • Oryza sativa
  • abiotic stress
  • comparative mapping
  • phytohormone
  • qPCR
  • spatio-temporal
  • transcription factors

ASJC Scopus subject areas

  • Genetics(clinical)
  • Genetics
  • Molecular Medicine

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