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<p>The <i>Meliaceae</i> (mahogany family) comprises over 740 species across 58 genera distributed predominantly in tropical and subtropical regions, many of which possess significant ecological, economic, and medicinal value. Intensified deforestation, overexploitation, and climate change have severely reduced natural populations, necessitating effective strategies for conservation, genetic improvement, and sustainable utilization. <i>In vitro</i> regeneration technologies—including micropropagation, somatic embryogenesis, and genetic transformation—provide essential tools for large-scale multiplication, germplasm conservation, and functional genomics of these high-value tree species. This review synthesized over three decades of research on <i>in vitro</i> regeneration systems developed for major <i>Meliaceae</i> genera, highlighting trends in explant selection, regeneration pathways, and hormonal responsiveness across taxa. Comparative analysis revealed a consistent reliance on cytokinin-driven shoot induction and auxin-mediated rooting, alongside persistent challenges related to explant maturity, phenolic exudation, genotype dependency, and low transformation efficiencies. Recent advances in stable transformation systems and stress-mitigating culture strategies demonstrated increasing feasibility of molecular improvement in selected species. The review identified key future directions, including diversification of plant growth regulators, integration of stress modulators, development of bioreactor-based propagation systems, and application of genome-editing technologies to improve regeneration fidelity and scalability. Collectively, these advances positioned <i>Meliaceae</i> biotechnology as a critical enabling platform for reforestation, conservation, and climate-resilient forestry.</p>

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Biotechnology of meliaceae: Micropropagation, somatic embryogenesis, and genetic transformation strategies

  • 期刊论文

  • 发表日期：

    2026年5月13日

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  • Nandini Bhogar Suresh,
  • Titus Magomere,
  • Stefaan. P. O. Werbrouck

摘要

The Meliaceae (mahogany family) comprises over 740 species across 58 genera distributed predominantly in tropical and subtropical regions, many of which possess significant ecological, economic, and medicinal value. Intensified deforestation, overexploitation, and climate change have severely reduced natural populations, necessitating effective strategies for conservation, genetic improvement, and sustainable utilization. In vitro regeneration technologies—including micropropagation, somatic embryogenesis, and genetic transformation—provide essential tools for large-scale multiplication, germplasm conservation, and functional genomics of these high-value tree species. This review synthesized over three decades of research on in vitro regeneration systems developed for major Meliaceae genera, highlighting trends in explant selection, regeneration pathways, and hormonal responsiveness across taxa. Comparative analysis revealed a consistent reliance on cytokinin-driven shoot induction and auxin-mediated rooting, alongside persistent challenges related to explant maturity, phenolic exudation, genotype dependency, and low transformation efficiencies. Recent advances in stable transformation systems and stress-mitigating culture strategies demonstrated increasing feasibility of molecular improvement in selected species. The review identified key future directions, including diversification of plant growth regulators, integration of stress modulators, development of bioreactor-based propagation systems, and application of genome-editing technologies to improve regeneration fidelity and scalability. Collectively, these advances positioned Meliaceae biotechnology as a critical enabling platform for reforestation, conservation, and climate-resilient forestry.