中国天门冬属系统发育学研究进展

Research on the Progress of Systematic Taxonomy in the Genus Asparagus of China

芦笋是一种营养保健型蔬菜,为全球重要的经济作物,中国已经成为世界芦笋生产第一大国。但种子主要依赖进口,因此中国需要创新芦笋育种体系,提高国内品种的国际竞争力。遗传分析发现,芦笋的遗传变异小,品种内杂种优势弱,而种间杂种是利用杂种优势的重要手段,但芦笋所在的天门冬属经典分类和分子系统发育关系紊乱,限制了其种间杂交育种工作的开展。中国已发现31种该属植物,是芦笋种间杂种优势利用有效的遗传资源。本研究综述了该属植物的经典分类和分子系统发育的研究进展,以期为下一步厘清该属植物的系统发育关系和开展芦笋种间强优势杂交育种提供参考。

Garden asparagus(Asparagus officinalis L.) is a kind of nutritious and healthy vegetable with important economic value in the world. China has become the largest production country of garden asparagus in the world.But the seeds mainly depend on import, so China need to innovate breeding system and improve the international competitiveness of domestic asparagus varieties. Genetic analysis demonstrated that the genetic variation of garden asparagus was low and its heterosis was weak among cultivars. Inter-specific hybridization is an important means to utilize heterosis, but the relationship between the classical classification and molecular phylogeny of the genus Asparagus is disordered, which limits the development of interspecific hybridization breeding. In this genus, thirty one species have been found in China, which is an effective genetic resource for the utilization of heterosis among Asparagus species. In order to provide reference for the next step to clarify the phylogenetic relationship of this genus and to carry out the interspecific hybrid breeding of garden asparagus in the near future, the research progress of its classical and molecular phylogeny of this genus is reviewed in this study.