雀稗属无融合生殖研究进展

Advances in Apomixis of Genus Paspalum

摘要:

雀稗属(Paspalum)为禾本科黍亚科多年生或一年生植物,是黍亚科内最有经济价值的类群之一。雀稗属植物种群极其复杂,大多数为多倍体。由于多倍体的存在及有性生殖的自交不亲和等原因,雀稗属植物表现出复杂多样的生殖特性,是禾本科中具备无融合生殖特性种类最多的属。对雀稗属无融合生殖的分布、无融合生殖相关的细胞学和胚胎学基础、无融合生殖的特点及其遗传学和分子生物学研究进展进行了综述。

Abstract:

Genus Paspalum，a perennial or an ual grass of Gramineae， is one of the with great economic value groups．The gneus Paspalum includes many complex species and most of them are polypoloid．Due to the causes such as polyploidy and self-incompatibility，the plants ofPaspalum，with the greatest number of apomictic species，show much complex and various reproduction characteristics．In this paper，a list of apomitic species of Paspalum is given．The cytological and embryological bases，and the characters of apomixis are described．Advances in genetics and molecular biology of apomixis aye in Paspalum also reviewed．