Department of Life Sciences, University of Modena and Reggio Emilia, Via Amendola 2, 42122 Reggio Emilia, Italy.
Cells. 2023 Nov 11;12(22):2606. doi: 10.3390/cells12222606.
The pivotal role of / transcriptional factors in crops involved in the abiotic stress response has been highlighted. The CBFs represent an important hub in the ICE-CBF-COR pathway, which is one of the most relevant mechanisms capable of activating the adaptive response to cold and drought in wheat, barley, and rye. Understanding the intricate mechanisms and regulation of the cluster of genes harbored by the homoeologous chromosome group 5 entails significant potential for the genetic improvement of small grain cereals. crops seem to share common mechanisms characterized, however, by some peculiar aspects of the response to stress, highlighting a combined landscape of single-nucleotide variants and copy number variation involving members of subgroup IV. Moreover, while chromosome 5 ploidy appears to confer species-specific levels of resistance, an important involvement of the factor might explain the greater tolerance of rye. By unraveling the genetic basis of abiotic stress tolerance, researchers can develop resilient varieties better equipped to withstand extreme environmental conditions. Hence, advancing our knowledge of and their interactions represents a promising avenue for improving crop resilience and food security.
已强调 / 转录因子在参与非生物胁迫响应的作物中的关键作用。CBFs 代表 ICE-CBF-COR 途径中的一个重要枢纽，该途径是最相关的机制之一，能够激活小麦、大麦和黑麦对寒冷和干旱的适应性反应。了解同源染色体组 5 上基因簇的复杂机制和调控具有重要的遗传改良小谷物的潜力。 / 作物似乎共享共同的机制，然而，对胁迫的反应有一些特殊的方面，突出了涉及亚组 IV 成员的单核苷酸变异和拷贝数变异的组合景观。此外，虽然染色体 5 的倍性似乎赋予了物种特异性的抗性水平，但 / 因子的重要参与可能解释了黑麦更大的耐受性。通过揭示非生物胁迫耐受性的遗传基础，研究人员可以开发出更具弹性的品种，使其更能耐受极端环境条件。因此，深入了解 / 及其相互作用代表了提高作物弹性和粮食安全的有前途的途径。
