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Estimation of Genetic Parameters and Breeding Value for Measurement Traits of Pacific Oyster Crassostrea gigas at Nine Months Old

9개월령 참굴의 계측형질에 대한 유전모수 및 육종가 추정

  • 박기열 (국립수산과학원 남해특성화연구센터) ;
  • 김현철 (국립수산과학원 육종연구센터) ;
  • 김병학 (국립수산과학원 남해특성화연구센터) ;
  • 최낙중 (국립수산과학원 제주수산연구소) ;
  • 문태석 (국립수산과학원 남해특성화연구센터)
  • Published : 2009.12.31

Abstract

Genetic and phenotypic parameter estimates for measurement traits were obtained from pacific oyster Crassostrea gigas at nine months old. For the growth-related traits among nine months old pacific oyster, heritabilities of shell length, shell height, shell width, total weight, body weight and shell weight were estimated as 0.4855, 0.5248, 0.0884, 0.7236, 0.7726 and 0.6957, respectively. Genetic correlations among the growth-related traits of pacific oyster at nines month old, shell length, shell height, shell width, total weight, body weight, shell weight were showing highly positive correlations. Breeding value on growth-related traits of pacific oyster at nine months old were estimated as shell length -7.044-11.870, shell height -11.380-18.370, shell width -1.234-2.831, total weight -8.339-17.140, body weight -1.813-3.507 and shell weight -4.422-8.837. The results show that there is quite substantial additive genetic variance for measurement traits in pacific oyster that can be exploited through selective breeding.

Keywords

References

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Cited by

  1. Estimates of Heritability for Growth and Shell Color Traits and Their Genetic Correlations in the Black Shell Strain of Pacific Oyster Crassostrea gigas vol.19, pp.5, 2009, https://doi.org/10.1007/s10126-017-9772-6