Genetic Relationships Analysis of Asparagus cochinchinensis $L_{OUR}$ Collections by Random Amplified Polymorphic DNA

RAPD에 의한 천문동 수집종의 유연관계 분석

  • Published : 2002.12.31

Abstract

To analyze the genetic relationships among 23 accessions of Asparagus cochinensis $L_{OUR}$, random amplified polymorphic DNA(RAPD) analysis was performed using artificially synthesized 10 primers. The range of polymorphism was $42.9{\sim}91.7%$ with an average of 72.9% in 85 randomly and specifically amplified DNA fragments. On the. basis of similarity coefficient analysis by unweighed pairgroup method, arithmetic average method(UPGMA), 23 accessions of Asparagus cochinensis $L_{OUR}$ could be classified into 6 groups at the similarity coefficient value of 0.82. Group I contained 5 accessions, Group II contained 6 accessions, Group III contained 6 accessions, GroupIV contained 2 accessions, Group V contained 2 accessions and Group VI contained 2 accessions. The range of total genetic similarity coefficient value of 23 accessions of Asparagus cochinchinensis $L_{OUR}$ was $0.47{\sim}0.92$ and average value was 0.76. To obtain more exact data from PCR, we also tried to develope enhanced RAPD techniques using Bovine Lacto Transfer Technique Optimizer(BLOTTO). In RAPD analysis of Asparagus cochinensis $L_{OUR}$, we could obtain better RAPD results by adding BLOTTO at a final concentration of 1%.

한약재 및 식품으로의 개발가능성이 높지만 현재 멸종 위험에까지 처해있는 천문동의 체계적 보호 및 보존을 위하여 수집된 유전자원의 유전 유연관계 분석을 실시한 결과는 다음과 같다. 1. 수집된 자생 천문동 23종에 대한 RAPD분석을 실시한 결과 primer 당 평균 8.5개의 PCR 밴드가 얻어졌으며 polymorphism 비율이 $42.9{\sim}91.7%$ 이었으며 평균 72.9%를 나타내어 객관적 다형 현상 분석이 가능하였다. 2. 유사도 0.82를 기준으로 23개의 천문동 수집종을 구분한 결과 6개의 group으로 분리되었는데 group I 은 전남 여수의 은적암, 경남 남해 이동, 전북 부안 위도, 전남 진도 지산과 전북 부안 하서종 이었고 Group II는 전남 영광 송이도와 전북 부안 계화. 전북 고창 아산 2, 전북 군산 개야도(적경종), 전북 고창 아산 1 그리고 일본 자생종 이었으며 group III는 전남 여수의 향일암, 충남 보령 남포, 전북 군산 선유도 1, 전북 군산 선유도 2, 전북 군산 오식도, 충남 서천 서면 자생종, Group IV는 경남 사천종과 전북 군산 선유도 2 적경종이었고 Group V는 전북 익산 금마 자생종과 중국 호남성의 적경종, Group IV는 중국종(청경종)과 군산 개야도 자생종(청경종)으로 각각 나뉘어겼다. 3. BLOTTO 사용에 의한 효율적 유연관계 분석에서는 BLOTTO를 사용할 경우 PCR 효율이 향상되어 band 획득수가 증가하고 좀더 선명한 PCR 산물의 획득이 가능하였으며 적절한 사용농도는 1% 이었다.

Keywords

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