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<p>BTB/POZ (Broad-complex, Tramtrack, and Bric a brac/Pox virus and Zinc finger) proteins are essential for facilitating plant developmental responses to environmental stress. This study delineates and analyzes <i>BTB/POZ</i> gene family members in two cultivated jute species—<i>Corchorus capsularis</i> (CC) and <i>Corchorus olitorius</i> (CO)—emphasizing their prospective utility in stress tolerance engineering. A total of 43 <i>BTB/POZ</i> proteins were found in CC, while 38 were identified in CO. These proteins exhibited significant heterogeneity in molecular weight, isoelectric points, subcellular localization, and domain architecture. The majority of genes were located on chromosome 2 in both species, with nuclear localization being predominant. Analysis of cis-regulatory elements revealed significant enrichment of <i>MYB, STRE</i>, <i>ABRE</i>, and <i>MYC</i> elements, associating <i>BTB/POZ</i> genes with multiple stress-response pathways, such as drought, salinity, waterlogging, and hormone signaling. Differential gene expression under abiotic stresses revealed critical candidate genes—namely <i>CcBTB2.9, CcBTB3.4, and CoBTB7.5</i>—associated with stress adaptation, positioning them as viable targets for enhancing stress resilience in jute through genetic modification.</p>

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Genome-Wide Characterization of BTB/POZ Gene Family in Jute (Corchorus spp.) Reveals Key Candidates for Abiotic Stress Tolerance

  • 期刊论文

  • 发表日期：

    2025年11月19日

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  • Rakesh Bhowmick,
  • Sougata Bhattacharjee,
  • Jitendra Kumar Meena,
  • R. Thribhuvan,
  • Kumar Nishant Chourasia,
  • Jiban Mitra,
  • Gouranga Kar

摘要

BTB/POZ (Broad-complex, Tramtrack, and Bric a brac/Pox virus and Zinc finger) proteins are essential for facilitating plant developmental responses to environmental stress. This study delineates and analyzes BTB/POZ gene family members in two cultivated jute species—Corchorus capsularis (CC) and Corchorus olitorius (CO)—emphasizing their prospective utility in stress tolerance engineering. A total of 43 BTB/POZ proteins were found in CC, while 38 were identified in CO. These proteins exhibited significant heterogeneity in molecular weight, isoelectric points, subcellular localization, and domain architecture. The majority of genes were located on chromosome 2 in both species, with nuclear localization being predominant. Analysis of cis-regulatory elements revealed significant enrichment of MYB, STRE, ABRE, and MYC elements, associating BTB/POZ genes with multiple stress-response pathways, such as drought, salinity, waterlogging, and hormone signaling. Differential gene expression under abiotic stresses revealed critical candidate genes—namely CcBTB2.9, CcBTB3.4, and CoBTB7.5—associated with stress adaptation, positioning them as viable targets for enhancing stress resilience in jute through genetic modification.