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한국 배추 기능유전체 연구의 현황

Current status of Brassica rapa functional genome research in Korea

박지현|유재경|박영두
한국식물생명공학회 (Korean Society for Plant Biotechnology)|2010.06|Journal of Plant Biotechnology|제37권 제2호|pp. 166-173

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mutagenesisBrassica rapamicroarrayfunctional genomicsinsertional
주제분류농학

초록

식물생명공학 분야에 있어 기능유전체 연구는 식물체가 지니고 있는 유용한 유전자의 생물학적 기능을 밝히고, 농업적 유용성을 확보하여 가치를 부여하는 것을 목적으로 한다. 배추는 우리나라 대표 음식 중의 하나인 김치의 주원료이며 식품영양학적으로도 우수성이 인정되었고 약 5만 ha에서 연간 약 250만 톤이 생산되어 1조원의 국내 시장 및 1억 달러의 수출액을 기록하는 경제작물이다. 그리고 우리나라가 주요 종자수출국의 위치를차지하고 있어 재배에 있어서나 경제적, 상업적으로 그 중요성이 매우 높은 작물이다. Multinational Brassica Genome Project (MBGP)가 시작되고 배추와 같은 속에 속하는 애기장대의 전 염기서열 분석이 완료됨으로써 배추의 기능유전체 연구가 더욱 활발해 질 수 있는 환경이 마련되었다. 또한 유전자 기능 분석 연구에 필요한 새로운 기술들이 계속 개발되고 있으며 우리나라를 선두로 하여 국제적으로도 연구가 이루어져 해마다 많은 성과들이 보고되고 있다. 본 총설에서는 기능유전체 연구의 첫 단계인 배추 돌연변이체 유기 방법을 시작으로 다양한 표현형의 돌연변이체를 소개하고 이 돌연변이 배추의 게놈내 flanking DNA 분석 및 유전자 동정, microarray를 이용한 유전자 분석, 대표적인 기능유전체 연구 사례를 제시하고자 하였다.

Abstract

The purpose of functional genome research is to identify biological function of useful gene and to give an agricultural value in plant biotechnology. Brassica rapa is an economic crop which recorded 1,000 billion won of domestic market and 100 million dollar of exports and it produces 2.5 million ton in 50,000 ha as a major ingredient of representative Korean food, Kimchi. Furthermore, it is very important crop economically and commercially because Korea is major seed exporter. The fact that Multinational Brassica Genome Project (MBGP) was launched and Arabidopsis thaliana, affiliated to same genus with B. rapa, has been fully sequenced activated functional genome research of B. rapa. Besides new technologies related to gene function analysis keep developing, many results are reporting every year by international research including Korea. This review paper introduces development of Chinese cabbage mutants which is a first step in functional genome research, variant phenotypes of mutants, flanking DNA analysis in B. rapa genome, gene identification, gene analysis using microarray,and representative researches.

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