The Korean Journal of Mycology (한국균학회지)

The Korean Society of Mycology (한국균학회)
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Genotypic Identification in Commercial Strains of Pleurotus ostreatus based on AFLP and VCGs

AFLP 분석 및 체세포 불화합성에 의한 느타리 유사품종의 확인

  • Seo, Kyoung-In (Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Yoo, Young-Bok (Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Jang, Kab-Yeul (Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Shin, Pyung-Gyun (Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Oh, YounLee (Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Kim, Kwang-Ho (Department of Crop Science, KonKuk University) ;
  • Kong, Won-Sik (Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA)
  • 서경인 (농촌진흥청 국립원예특작과학원 버섯과) ;
  • 유영복 (농촌진흥청 국립원예특작과학원 버섯과) ;
  • 장갑열 (농촌진흥청 국립원예특작과학원 버섯과) ;
  • 신평균 (농촌진흥청 국립원예특작과학원 버섯과) ;
  • 오연이 (농촌진흥청 국립원예특작과학원 버섯과) ;
  • 김광호 (건국대학교 식량자원학과) ;
  • 공원식 (농촌진흥청 국립원예특작과학원 버섯과)
  • Received : 2013.03.19
  • Accepted : 2013.03.26
  • Published : 2013.03.31
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Abstract

We already reported four groups which contains some similar strains based on URP-PCR in the previous paper. The objective of this study was to confirm those strains by the amplified fragment length polymorphism (AFLP) and vegetative compatibility group (VCG). AFLP analysis showed no difference among these strains except ASI 2595 and 2183 in Weonhyeong group and ASI 2829 in Suhan group. They showed specific DNA bands only in the result of P + AG/M + AAG and P + GT/M + ATG primer combinations out of eight different combinations. The AFLP primers produced a total of 330 fragments between 80 and 1000 bp in length for 31 Pleurotus ostreatus strains. At a genetic similarity of 0.96, the UPGMA analysis separated the isolates into four distinct clusters. Each group was classified by similar strains. Confrontation test by vegetative compatibility groups (VCGs) also showed distinct line between strains from different groups, but no line between similar strains within the cluster. Our results indicate that most of similar strains was not distinctness. Thus, similar strains are considered to be very close on the genealogy of their parent or same strain with different name.

URP-PCR 분석에서 유사품종으로 분류된 품종들을 이용하여 AFLP 방법과 체세포불화합성(VCG)으로 품종간 다형성을 조사하였다. AFLP로 분석 한 결과 원형 유사품종군에서는 ASI 2595와 2183이 차이를 보였으며, 수한 유사품종군에서는 ASI 2829만이 차이를 보이고 다른 균주간에는 차이를 볼 수 없었다. 그 차이는 8개의 primer 조합 중 P + AG/M + AAG와 P + GT/M + ATG primer 조합에서만 나타났다. 31개 느타리 품종에 대한 AFLP분석은 80~1000bp에서 총 330개 밴드를 나타내었다. UPGMA 유연관계 분석에서는 유사도 0.96에서 4개의 분리된 집단으로 구분되었으며 각 집단은 유사품종들로 구성되었다. 균주간 화합성 검정을 하여 버섯 품종 판별을 시도한 결과 대치배양에 의한 이질핵화는 품종간 차이가 있는 것으로 나타났으나. 유사품종간에는 대치선이 나타나지 않았다. 유사품종들의 대부분이 구별성이 인정되지 않는 것으로 나타나 품종육성에 이용된 교배모본의 계보가 아주 가깝거나 혹은 동일한 품종이 복제되어 다른 이름으로 유통되는 것으로 추정할 수 있었다.

Keywords

References

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