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자연산이 도입된 넙치 기초집단의 11개월령 성장형질에 대한 유전모수 추정

Estimation of Genetic Parameters of Growth-related Traits from 11-month-old Olive Flounder (Paralichthys olivaceus) Base Population in which Wild Flounder Broodstocks were Introduced

  • 김현철 (국립수산과학원 육종연구센터) ;
  • 노재구 (국립수산과학원 육종연구센터) ;
  • 이정호 (국립수산과학원 육종연구센터) ;
  • 박철지 (국립수산과학원 육종연구센터) ;
  • 민병화 (국립수산과학원 해역산업과) ;
  • 김경길 (국립수산과학원 연구기획과) ;
  • 김종현 (국립수산과학원 양식관리과) ;
  • 이정규 (경상대학교 축산학과) ;
  • 명정인 (국립수산과학원 육종연구센터)
  • Kim, Hyun-Chul (Genetics & Breeding Research Center, National Fisheries & Development Institute) ;
  • Noh, Jae-Koo (Genetics & Breeding Research Center, National Fisheries & Development Institute) ;
  • Lee, Jong-Ho (Genetics & Breeding Research Center, National Fisheries & Development Institute) ;
  • Park, Choul-Ji (Genetics & Breeding Research Center, National Fisheries & Development Institute) ;
  • Min, Byung-Hwa (Aquaculture Industry Division, National Fisheries & Development Institute) ;
  • Kim, Kyung-Kil (Research and Development Planning Division, National Fisheries & Development Institute) ;
  • Kim, Jong-Hyun (Aquaculture Management Division, National Fisheries & Development Institute) ;
  • Lee, Jung-Gyu (Division of Animal Science, Gyeongsang National University) ;
  • Myeong, Jeong-In (Genetics & Breeding Research Center, National Fisheries & Development Institute)
  • 투고 : 2010.10.28
  • 심사 : 2011.03.18
  • 발행 : 2011.04.30

초록

본 연구는 넙치의 선발 육종을 위한 유전적 다양성이 확보된 기초집단을 만들기 위해 2005년에 수집한 자연산과 양식산 친어를 이용하여 생산된 기초집단의 부화 후 11개월령 체중, 전장, 체고, 체형지수 및 비만도 측정치의 유전력 및 이들 형질간의 유전상관과 표현형상관을 추정하였다. 넙치 기초집단의 부화 후 11개월령 체중, 전장, 체고, 체형지수 및 비만도의 유전력은 각각 0.754, 0.753, 0.789, 0.438, 0.369로 추정되었으며, 체중과 전장, 체고, 체형지수 및 비만도간의 유전상관은 각각 0.969, 0.960, -0.403, 0.623으로 추정되었고, 전장과 체고, 체형지수 및 비만도간의 유전상관을 각각 0.960, -0.344, 0.469로 추정되었으며, 체형지수와 비만도간의 유전상관은 -0.726으로 추정되었다. 자연산이 도입된 넙치 기초집단의 부화 후 11개월령 넙치의 체중, 전장, 체고 등 성장형질의 유전력은 대체적으로 높게 추정되어 개체선발을 통한 개량이 가능할 것으로 나타났으며, 체중, 전장, 체고 등의 성장형질과 체형지수간의 유전상관 및 표현형 상관은 낮은 부의 상관관계를 보여 넙치 성장도 향상과 체형개선을 목적으로한 선발육종을 위해서는 체중과 체형지수에 가중치를 부여한 선발지수를 이용하는 것이 바람직할 것으로 보인다.

This study estimated the genetic parameters of growth-related traits from 11-month-old olive flounder (Paralichthys olivaceus) base population in which wild and cultured broodstocks were introduced. The heritability of body weight, total length, body height, body shape, and condition factor of the base population was estimated to be 0.754, 0.753, 0.789, 0.438, and 0.369, respectively. Genetic correlations between body weight and total length, between body weight and body height, and between total length and body height were 0.969, 0.960, and 0.960, respectively, showing highly positive correlation. Genetic correlations between body weight and body shape, between total length and body shape, between body height and body shape were -0.403, -0.344, and -0593, respectively, showing low negative correlation. Overall, olive flounder might be an appropriate selective breeding species with the high heritability of the traits in an 11-month-old population.

키워드

참고문헌

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피인용 문헌

  1. The Morphological Study of Wild and Farmed Olive Flounder (Paralichthys olivaceus): The Role of Indirect Selection within and between Populations vol.16, pp.4, 2012, https://doi.org/10.12717/DR.2012.16.4.309
  2. Estimation of Family Variation and Genetic Parameter for Growth Traits of Pacific Abalone, Haliotis discus hannai on the 3th Generation of Selection vol.29, pp.4, 2013, https://doi.org/10.9710/kjm.2013.29.4.325
  3. Optimum Feeding Rate in Growing Olive Flounder Paralichthys olivaceus Fed Practical Extruded Pellet at Optimum Water Temperature (21℃) vol.26, pp.4, 2014, https://doi.org/10.13000/JFMSE.2014.26.4.789
  4. Optimum Feeding Rate in Growing Olive Flounder Paralichthys olivaceus Fed Practical Expanded Pellet at Optimum Water Temperature (19-21℃) vol.47, pp.3, 2014, https://doi.org/10.5657/KFAS.2014.0234