Geographical variation and evolutionary relationship of Asparagus cochinchinensis Lour. based on rDNA-ITS sequences and Random Amplified Polymorphic DNA(RAPD)

ITS 부위 염기서열과 RAPD분석을 통한 천문동의 지역별 변이 및 분자진화적 유연관계

Phylogenetic relationship and DNA polymorphism among local populations of the Asparagus cochinchinensis have been investigated based on nuclear ribosomal DNA ITS sequences and RAPD analysis in Korea. In result, two genetically distinct groups of local populations except Geoje were recognized by the phylogenetic tree both in rDNA-ITS and RAPD. One was called 'western coast group' that includes the Buan 1, 2 and Taean and the other was 'southern coast group' that includes Haenam, Yeosu and Namhae. Thus, the geographical relationship of Asparagus cochinchinensis was two well-typified clades. These results suggest that the geographical genetic variation of Asparagus cochinchinensis is closely connected with the slow and long period of propagation via the coast in Korean Peninsula.