Abbas Adil, Yu Ping, Sun Lianping, Yang Zhengfu, Chen Daibo, Cheng Shihua, Cao Liyong
Key Laboratory for Zhejiang Super Rice Research and State Key Laboratory of Rice Biology, China National Rice Research Institute, Hangzhou, China.
State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, China.
Front Plant Sci. 2021 Mar 2;12:629314. doi: 10.3389/fpls.2021.629314. eCollection 2021.
Rice ( L.) occupies a very salient and indispensable status among cereal crops, as its vast production is used to feed nearly half of the world's population. Male sterile plants are the fundamental breeding materials needed for specific propagation in order to meet the elevated current food demands. The development of the rice varieties with desired traits has become the ultimate need of the time. Genic male sterility is a predominant system that is vastly deployed and exploited for crop improvement. Hence, the identification of new genetic elements and the cognizance of the underlying regulatory networks affecting male sterility in rice are crucial to harness heterosis and ensure global food security. Over the years, a variety of genomics studies have uncovered numerous mechanisms regulating male sterility in rice, which provided a deeper and wider understanding on the complex molecular basis of anther and pollen development. The recent advances in genomics and the emergence of multiple biotechnological methods have revolutionized the field of rice breeding. In this review, we have briefly documented the recent evolution, exploration, and exploitation of genic male sterility to the improvement of rice crop production. Furthermore, this review describes future perspectives with focus on state-of-the-art developments in the engineering of male sterility to overcome issues associated with male sterility-mediated rice breeding to address the current challenges. Finally, we provide our perspectives on diversified studies regarding the identification and characterization of genic male sterility genes, the development of new biotechnology-based male sterility systems, and their integrated applications for hybrid rice breeding.
水稻（Oryza sativa L.）在谷类作物中占据着非常显著且不可或缺的地位，因为其大量的产量用于养活近一半的世界人口。雄性不育植株是满足当前不断增长的粮食需求进行特定繁殖所需的基础育种材料。培育具有所需性状的水稻品种已成为当下的迫切需求。基因雄性不育是一种广泛应用于作物改良的主要系统。因此，鉴定新的遗传元件以及了解影响水稻雄性不育的潜在调控网络对于利用杂种优势和确保全球粮食安全至关重要。多年来，各种基因组学研究揭示了许多调控水稻雄性不育的机制，这为花药和花粉发育的复杂分子基础提供了更深入、更广泛的理解。基因组学的最新进展以及多种生物技术方法的出现彻底改变了水稻育种领域。在本综述中，我们简要记录了基因雄性不育在改良水稻作物生产方面的最新演变、探索和利用。此外，本综述描述了未来的展望，重点关注雄性不育工程的最新进展，以克服与雄性不育介导的水稻育种相关的问题，应对当前的挑战。最后，我们就基因雄性不育基因的鉴定和表征、基于生物技术的新型雄性不育系统的开发及其在杂交水稻育种中的综合应用等多方面研究提供了我们的观点。
