한국어류학회지 (Korean Journal of Ichthyology)

  • 제24권2호
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  • Pages.118-124
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  • 2012
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  • 1225-8598(pISSN)
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  • 2288-3371(eISSN)
한국어류학회 (The Ichthyological Society of Korea)
권호 표지

Annealing control primer system을 이용한 어류 재조합 myostatin prodomain 단백질에 의해 성장이 증가된 무지개송어의 특이적 발현 유전자 탐색

Identification of Differentially Expressed Genes in Improved Rainbow Trout Growth by Treatment with a Fish Myostatin Prodomain Using the Annealing Control Primer System

  • 이상범 (강릉원주대학교 생명과학대학 해양분자생명공학과) ;
  • 진형주 (강릉원주대학교 생명과학대학 해양분자생명공학과)
  • Lee, Sang-Beum (Department of Marine Molecular Biotechnology, Gangneung-Wonju National University) ;
  • Jin, Hyung-Joo (Department of Marine Molecular Biotechnology, Gangneung-Wonju National University)
  • 투고 : 2012.02.17
  • 심사 : 2012.04.29
  • 발행 : 2012.06.30
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⟨ 이전 논문 다음 논문 ⟩

초록

이전 연구에서 넙치유래 재조합 마이오스타틴 프로도메인을 무지개송어에 한달간 침지법을 통하여 처리한 결과 대조군에 비하여 무게가 최대 약 42% 증가되었다. 따라서 본 연구는 재조합 마이오스타틴 프로도메인을 침지법에 의해 처리된 무지개송어와 대조군의 근육으로부터 발현되는 cDNA를 제작하여 마이오스타틴 프로도메인에 의해서 유도된 특정유전자를 선발하기 위하여 ACP (annealing control primer)를 이용한 DDRT법을 통하여 분석하였다. 총 20가지의 ACP를 이용한 결과 2개의 특정 유전자를 분석하였으며, NCBI BLAST 분석결과 Cytochrome P450 mono oxygenase와 Profilin으로 판명되었다. 이 중 Cytochrome P450 mono oxygenase는 대조군보다 발현량이 증가하였으며, Profilin는 대조군에 비해서 발현량이 감소하였다. 이러한 결과를 재확인하기 위하여 두 유전자의 primer를 각각 제작하여 semi-quantitative RT-PCR를 시행한 결과 DDRT법에 의한 분석과 동일하였다. 본 결과는 어류의 성장에서 마이오스타틴 프로도메인의 기능 및 메카니즘에 대한 연구에 유용한 자료가 될 것으로 사료된다.

The present study was conducted to investigate different gene expression profile between treated poMSTNpro and non-treated in rainbow trout and to identify those genes that are specifically or predominantly expressed in treated poMSTNpro by employing annealing control primer (ACP)-based GeneFishing polymerase chain reaction (PCR). We isolated total RNAs in muscle tissues from the treated poMSTNpro fish by immersion bath technique with fish myostatin prodomain (Paralichthys olivaceus, poMSTNpro) for one month and the other was non-treated poMSTNpro, and synthesized cDNA using annealing control primers (ACP, Seegene, Korea). Using 20 different ACPs for PCR, were cloned sequenced, and analyzed identities of 2 differentially expressed genes (DEGs). According to BLAST analysis, sequences of 2 clones significantly matched database entries and confirmed by semi-quantitative RT-PCR. The functional roles of one up-regulated gene, cytochrome P450 mono-oxygenases 2K1v2 (CYP2K1v2), and one down-regulated gene was Profilin-1 were identified. We identified distinctive gene expression profiles in improved rainbow trout growth by treatment with a fish myostatin prodomain using ACP-based GeneFishing.

키워드

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