Namata Mercy Jocyline, Xu Jingyi, Habyarimana Ephrem, Palakolanu Sudhakar Reddy, Wang Lihua, Li Jieqin
College of Agriculture, Anhui Science and Technology University, Fengyang, China.
International Joint Research Center of Forage Bio-Breeding in Anhui Province, Chuzhou, China.
Plant Genome. 2025 Jun;18(2):e70038. doi: 10.1002/tpg2.70038.
The increasing changes in the climate patterns across the globe have deeply affected food systems where unparalleled and unmatched challenges are created. This jeopardizes food security due to an ever-increasing population. The extreme efficiency of C crops as compared to C crops makes them incredibly significant in securing food safety. C crops, maize (Zea mays L.) and sorghum (Sorghum bicolor L. Moench) in particular, have the ability to withstand osmotic stress induced by oxidative stress. Osmotic stress causes a series of physical changes in a plant thus facilitating reduced water uptake and photosynthesis inhibition, such as membrane tension, cell wall stiffness, and turgor changes. There has been a great advancement in plant breeding brought by introduction of clustered regularly interspaced short palindromic repeats (CRISPR) gene editing technology. This technology offers precise alterations to an organism's DNA through targeting specific genes for desired traits in a wide number of crop species. Despite its immense opportunities in plant breeding, it faces limitations such as effective delivery systems, editing efficiency, regulatory concerns, and off-target effects. Future prospects lie in optimizing next-generation techniques, such as prime editing, and developing novel genotype-independent delivery methods. Overall, the transformative role of CRISPR/Cas9 in sorghum and maize breeding underscores the need for responsible and sustainable utilization to address global food security challenges.
全球气候模式日益变化,深刻影响了粮食系统,带来了前所未有的挑战。由于人口不断增长,这危及了粮食安全。与C作物相比,C4作物的极端效率使其在确保食品安全方面具有极其重要的意义。C4作物,特别是玉米(Zea mays L.)和高粱(Sorghum bicolor L. Moench),有能力承受氧化应激诱导的渗透胁迫。渗透胁迫会在植物中引起一系列物理变化,从而导致水分吸收减少和光合作用受到抑制,如膜张力、细胞壁硬度和膨压变化。通过引入成簇规律间隔短回文重复序列(CRISPR)基因编辑技术,植物育种取得了巨大进展。这项技术通过针对多种作物物种中所需性状的特定基因,对生物体的DNA进行精确改变。尽管它在植物育种方面有巨大机遇,但也面临有效递送系统、编辑效率、监管问题和脱靶效应等限制。未来的前景在于优化下一代技术,如碱基编辑,并开发新的不依赖基因型的递送方法。总体而言,CRISPR/Cas9在高粱和玉米育种中的变革性作用凸显了负责任和可持续利用以应对全球粮食安全挑战的必要性。