BZR Proteins: Identification, Evolutionary and Expression Analysis Under Various Exogenous Growth Regulators in Plants

Overview

Journal Mol Biol Rep

Specialty Molecular Biology

Date 2022 Oct 30

PMID 36309612

Authors

Uzair Ullah

Abdullah Shalmani

Mohammad Ilyas

Ali Raza

Sheraz Ahmad

Amir Zaman Shah

Fahim Ullah Khan

AzizUd-Din

Ayesha Bibi

Shafee Ur Rehman

Zaheer Abbas

Zeeshan Ali Buttar

Affiliations

Soon will be listed here.

Abstract

Backgrounds: The BRASSINAZOLE-RESISTANT (BZR) family of transcription factors affects a variety of developmental and physiological processes and plays a key role in multiple stress-resistance functions in plants. However, the evolutionary relationship and individual expression patterns of the BZR genes are unknown in various crop plants.

Methods And Results: In this study, we performed a genome-wide analysis of the BZR genes family in wheat and rice. Here, we found a total of 16 and 6 proteins containing the BZR domain in wheat and rice respectively. The phylogenetic analysis divided the identified BZR proteins from several plants into five subfamilies. The intron/exon structural patterns and conserved motifs distribution revealed that BZR proteins exhibite high specificities in each subfamily. Moreover, the co-expression and protein-protein interaction analysis suggested that BZR proteins may interact/co-expressed with several other proteins to perform various functions in plants. The presence of different stresses, hormones and light-responsive cis-elements in promoter regions of BZR genes imply its diverse functions in plants. The expression patterns indicated that many BZR genes regulate organ development and differentiation. BZR genes significantly respond to exogenous application of brassinosteroids, melatonin and abiotic stresses, demonstrating its key role in various developmental and physiological processes.

Conclusion: The present study establishes the foundation for future functional genomics studies of BZR genes through reverse genetics and to further explore the potential of BZR genes in mitigating the stress tolerance in crop plants.

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