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<p>Globally, the important economic and staple food crops face various abiotic and biotic factors that influence their growth and yield. Traditional breeding strategies have attempted to improve heat tolerance, but often face challenges as improving one trait compromises the other. In this context, a recent discovery by Li et al. shows how a tiny gene switch, regulated by NF-Y transcription factors (a highly conserved eukaryotic transcription factor) in the rice QT12 gene, not only helps the plant to escape the deadly grip of global heat waves but also protects yield and grain quality. In addition, Trait Regulatory Haplotypes (TRHs) associated with QT12 offer a cutting-edge breeding tool to incorporate heat tolerance traits into developing rice varieties, and it can be a powerful tool to mitigate the traditional breeding limitations. Understanding this circuit offers breeders a novel target for developing heat-resilient, high-quality rice cultivars, potentially adaptable to other cereals in the future.</p>

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Switching on survival: how rice outsmarts heat with a natural gene circuit

  • 期刊论文

  • 发表日期：

    2025年10月3日

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  • Mohammad Abubakar Yasin,
  • Muhammad Waseem Sajjad,
  • Rubab Zahra Naqvi,
  • Imran Amin,
  • Muhammad Arif

摘要

Globally, the important economic and staple food crops face various abiotic and biotic factors that influence their growth and yield. Traditional breeding strategies have attempted to improve heat tolerance, but often face challenges as improving one trait compromises the other. In this context, a recent discovery by Li et al. shows how a tiny gene switch, regulated by NF-Y transcription factors (a highly conserved eukaryotic transcription factor) in the rice QT12 gene, not only helps the plant to escape the deadly grip of global heat waves but also protects yield and grain quality. In addition, Trait Regulatory Haplotypes (TRHs) associated with QT12 offer a cutting-edge breeding tool to incorporate heat tolerance traits into developing rice varieties, and it can be a powerful tool to mitigate the traditional breeding limitations. Understanding this circuit offers breeders a novel target for developing heat-resilient, high-quality rice cultivars, potentially adaptable to other cereals in the future.