扬州大学学报（农业与生命科学版）2024，Vol.45Issue(1)：1-9,26,10.DOI:10.16872/j.cnki.1671-4652.2024.01.001
水稻种子休眠遗传调控机制研究进展
Research advance in genetic regulation mechanism of seed domancy in rice
摘要
Abstract
Seed dormancy ensures that seeds germinate under optimal conditions and is of great significance for the sur-vival and environmental adaptation of plants.The strength of seed dormancy affects seed germination rate,germination uniformity,and subsequent growth,which are crucial for crop yield and quality.Seed dormancy is a complicated phenom-enon,which is regulated by endogenous hormones,environmental effects,and complex genetic networks.Among them,the phytohormone abscisic acid(ABA)and gibberellic acid(GA)are the major endogenous regulators in the seed dorman-cy.Most dormancy-related genes mediate seed dormancy by directly or indirectly affecting GA or ABA-related genes.Over the past few decades,breeders have conducted quantitative trait locus(QTL)mapping studies on rice seed dormancy and,in combination with a series of mutants related to rice germination,have preliminarily revealed the molecular mecha-nisms of seed dormancy.This review summarizes the key genes and their regulatory mechanisms controlling rice seed dor-mancy in recent years,with the aim of providing assistance for further research in this direction and molecular breeding of rice for resistance to premature germination.关键词
水稻/种子休眠/穗发芽/ABA/GA/遗传调控Key words
rice/seed dormancy/pre-harvest sprouting/ABA/GA/genetic regulation分类
农业科技引用本文复制引用
卢心明,牛百晓..水稻种子休眠遗传调控机制研究进展[J].扬州大学学报（农业与生命科学版）,2024,45(1):1-9,26,10.基金项目
国家自然科学基金资助项目(32170344) （32170344）
国家自然科学青年基金项目(31701392) （31701392）
