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초록
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본 연구는 3배체 해산송사리, Oryzias dancena를 생산하기 위해서 다양한 조건에서 실험을 실시하였다. 저온처리($0^{\circ}C$)에서 30, 45, 60분간 처리하여 3배체를 유도 생산하였다. 여러 유도조건 결과, 45분간 처리하였을 때 가장 높은 3배체 생산율이 나타났다. 3배체 판별은 Chromosome 관찰, flow cytometer 분석 및 적혈구 측정을 통해서 판별하였다. 3배체 해산송사리의 적혈구 표면적과 부피는 2배체 해산송사리보다 크게 나타났고, 3배체 Chromosome number는 72개, 2배체는 48개가 관찰되었다. Flow cytometer 분석에서도 3배체가 2.40 pg/cell 그리고 2배체가 1.61 pg/cell 측정되어 DNA contents도 3배체가 2배체보다 1.5배 정도 크게 관찰되었다. 본 연구 결과는 불임 형질전환 어류를 위한 실험동물로의 3배체 해산송사리의 유용성 및 가치성을 제공한다.

Abstract AI-Helper 아이콘AI-Helper

Triploidy was induced in the marine medaka, Oryzias dancena by cold shock treatment ($0^{\circ}C$) of fertilized eggs for 30, 45, or 60 min, applied two minutes after fertilization. The triploid genotype was induced by each of the thermal shock regimes tested. The best result was obtained...

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  • The comments of the anonymous reviewers greatly improved the quality of this manuscript. All experiments in this study complied with the current laws of Korea (the Law Regarding Experimental Animals, No.
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