RAPD에 의한 마늘의 유연관계 분석

Genetic Relationship among Garlic Cultivars Based on RAPD Analysis

  • 권순태 (안동대학교 생명자원과학부) ;
  • 오세명 (안동대학교 생명자원과학부)
  • 발행 : 1999.12.01

초록

국내에서 재배되는 7종의 마늘과 오국종인 헝가리종 및 중국 산동종을 수집하여 총 70종의 임의 primer를 이용하요 RAPD분석을 실시한 결과 32개의 primer에서 종간에 다형성(polymorphism)을 보이는 DNA벤드를 확인하였다. PCR에 의해 증폭된 DNA밴드 수는 151개였으며 그 중 125개의 밴드가 수집종 간에 다형성을 보였다. 다형성을 보인 밴드를 대상으로 집단분석을 실시한 결과 유전적 거리가 0.271인 값에서 9종의 수집마늘은 두 개의 group으로 나누어 졌는데, Group I은 창녕종과 헝가리종 이었고 Group II는 남도, 산동, 예천, 의성, 정선, 영월 및 단양종으로 분류되었다. 마늘의 주요 생태형인 난지형과 한지형은 유전적 거리가 0.200값을 전후하여 나누어 졌다. 각각의 primer로부터 나타난 밴드들은 지방종 간에 특이성을 보이는 것이 다수 존재하여 외국종과 국내종 마늘이나 국내종 간의 종을 구분하는 표식이자로 사용할 수 있을 것이다.

RAPD analysis using random primers were tried to evaluate the genetic variation and diversity of the nine garlic cultivars including two foreign varieties. Thirty-two primers out of 70 primers screened were used to amplify genomic DNA of garlic cultivars using polymerase chain reaction(PCR). Among a total of 151 bands amplified by 32 primers, 125 polymorphic bands were subjected to analysis for genetic relationship of garlic cultivars. The estimated size of amplified PCR products were in the range of 932 to 4,060 base pairs. Nine garlic cultivars were classified into two groups, such as group I corresponded to Changnyung and Hungary cultivars, and group II, Namdo, Sandong from China, Yecheon, Euiseong, Youngweol, Danyang, Jeongsun cultivars, with the genetic distance value of 0.271. The major ecological types of garlics, so called southern and northern types, was grouped in the genetic distance value of 0.200. The results presented in this study suggest that RAPD analysis are likely to be useful for identification of cultivars and evaluation of genetic origin in garlics.

키워드

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