Genome-Wide Identification and Expression Analysis of the Broad-Complex, Tramtrack, and Bric-à-Brac Domain-Containing Protein Gene Family in Potato

Aiana, Anita Katwal, Hanny Chauhan, Santosh Kumar Upadhyay and Kashmir Singh ()
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Aiana: Department of Biotechnology, BMS Block I, Panjab University, Sector 25, Chandigarh 160014, India
Anita Katwal: Department of Biotechnology, BMS Block I, Panjab University, Sector 25, Chandigarh 160014, India
Hanny Chauhan: Department of Biotechnology, BMS Block I, Panjab University, Sector 25, Chandigarh 160014, India
Santosh Kumar Upadhyay: Department of Botany, Panjab University, Sector 14, Chandigarh 160014, India
Kashmir Singh: Department of Biotechnology, BMS Block I, Panjab University, Sector 25, Chandigarh 160014, India

Agriculture, 2024, vol. 14, issue 5, 1-23

Abstract: The BTB (broad-complex, tramtrack, and bric-à-brac) domain, also known as the POZ (POX virus and zinc finger) domain, is a conserved protein–protein interaction domain present in various organisms. In this study, we conducted a genome-wide search to identify and characterize BTB genes in Solanum tuberosum . A total of 57 StBTBs were identified and analyzed for their physicochemical properties, chromosomal distribution, gene structure, conserved motifs, phylogenetic relationships, tissue-specific expression patterns, and responses to hormonal and stress treatments. We found that StBTBs were unevenly distributed across potato chromosomes and exhibited diverse gene structures and conserved motifs. Tissue-specific expression analysis revealed differential expression patterns across various potato tissues, implying their roles in plant growth and development. Furthermore, differential expression analysis under hormonal and stress treatments indicated the involvement of StBTBs in abiotic and biotic stress responses and hormone signaling pathways. Protein–protein interaction analysis identified potential interactions with ribosomal proteins, suggesting roles in translational regulation. Additionally, microRNA target site analysis revealed regulatory relationships between StBTBs and miRNAs. Our study provides a comprehensive understanding of the StBTB gene family in potato, laying the groundwork for further functional characterization and manipulation of these genes to improve stress tolerance and agricultural productivity in potato and related plant species.

Keywords: Solanum tuberosum; BTB domain; abiotic stress; biotic stress; protein modification (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2024
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