【摘要】 从遗传控制、环境影响、倍性影响、激素水平和矿物质调控以及无孢子起始细胞出现的时间和位置5个方面综述了影响植物无融合生殖胚发生发育的主要因素,旨在系统了解植物无融合生殖的发生机理。同时分析了草地早熟禾无融合生殖研究的现状和制约瓶颈,阐释和展望了无融合生殖方式在草地早熟禾育种中的优势所在、理论与应用价值和种质创制前景,使之为后续草地早熟禾优良新品种的选育和应用实践提供理论依据。更多还原

【Abstract】 The main factors affecting the development of apomictic embryogenesis in plants are summarized from five perspectives:genetic control,environmental impact,ploidy implications,hormone levels and mineral regulation,and the timing and location of the aposporous initiation cell. The purpose of this review is to develop a systematic understanding of the mechanism of apomixis in plants. In particular,research on apomixis in Poa pratensis is reviewed,factors limiting its occurrence are identified,theoretical advantages of its application are evaluated,and prospects for the use of apomixis in P. pratensis breeding and new germplasm creation are explored. This study provides a theoretical basis for the breeding and development of new varieties of P. pratensis.更多还原