한국패류학회지 (The Korean Journal of Malacology)

한국패류학회 (The Malacological Society of Korea)
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근친교배에 의한 북방전복 (Haliotis discus hannai)의 근교약세 현상

Inbreeding depression of Pacific abalone, Haliotis discus hannai by inbreeding mating experiments

  • 박철지 (국립수산과학원 육종연구센터) ;
  • 남원식 (국립수산과학원 육종연구센터) ;
  • 이명석 (국립수산과학원 육종연구센터) ;
  • 강지윤 (국립수산과학원 육종연구센터) ;
  • 김경길 (국립수산과학원 육종연구센터)
  • 투고 : 2014.11.24
  • 심사 : 2014.12.26
  • 발행 : 2014.12.31
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초록

북방전복의 근친교배로 인한 근교약세현상의 유무를 명확히 하기 위하여 근친교배 2가계 (AA 및 BB)와 비근친교배 (ww1 및 ww2) 2가계를 같은날 동시에 생산하여 유생단계부터 동일한 수조에 혼합 사육관리한 후 친자확인 기술을 통하여 4개월째 및 10개월째 각각의 가계별 생존율 및 성장을 비교분석하였다. 성장의 경우, 4개월째 근친교배구 AA가계만이 비근친교배구 ww1 및 ww2가계보다 유의적으로 낮은 값으로 나타났지만, 10개월째는 근친교배구 AA가계 및 BB가계 모두 비근친교배구 ww1 및 ww2가계보다 유의적으로 낮은 값을 나타냈다. 또한 생존율에 있어서도 근친교배구가 비근친교배구에 비하여 낮은 값을 나타내었다. 이것은 한세대의 근친교배(근교계수 : 0.25) 에 있어서도 근교약세현상이 나타난다는 것을 보고하고 있다.

Inbreeding depression may be an avoidable phenomenon for abalone culture. However, only a few studies were carried out on inbreeding depression. In the present study, to demonstrate inbreeding depression in growth trait of Pacific abalone, H. discus hannai, inbreeding and outbreeding families were produced in 2010. Inbred and outbred families from each experiment were reared in same tank until 10 month for the same breed environment. The individual of inbred and outbred were distinguished by paternity test using microsatellite DNA. The shell length between inbred and outbred families was compared. At the results, significantly higher shell length was observed in the outbred families at 10 mon (P < 0.05). These results indicate that inbreeding depression is obviously observed in growth traits in the first generation of full-sib family of the H. discus hannai.

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참고문헌

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피인용 문헌

  1. Molecular and Physiological Aspects of Breeding Program for Development of Hybrids between Abalones Distributed in the Coast of Korea vol.26, pp.10, 2016, https://doi.org/10.5352/JLS.2016.26.10.1218