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한국육종학회지 Vol.55 No.2.jpg
KCI등재 학술저널

가속기빔을 이용한 돌연변이 육종의 특성과 연구개발 현황

Characteristics and Research Status of Mutation Breeding Using Accelerator Beams

DOI : 10.9787/KJBS.2023.55.2.110
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Mutation breeding through irradiation has been applied to several varieties and genetic resources since the discovery of the useof X-rays for inducing mutations in plants by Stadler in 1928. A heavy ion beam with high linear energy transfer (LET) shows a higherrelative biological effectiveness (RBE), and it is more effective in inducing plant mutations than low LET radiations, such as X-rays, gammarays, and electrons. Since early 1990s, several plant breeding programs in Japan have used heavy ion beams from accelerators. These beamsimpart a high energy effect on a local target; therefore, they induce a higher number of single and double strand DNA breaks. In addition,they induce a large number of DNA deletions than low LET radiations. Therefore, a heavy ion beam is superior to low LET radiations interms of induction rate and the mutation spectrum. In Korea, a heavy ion accelerator that can be used for breeding is under construction. However, a large-capacity proton accelerator (KOMAC: Korea Multi-purpose Accelerator Complex) was built recently, and it is a pioneerstep in breeding research worldwide. This review summarizes the basic characteristics, successful research achievements, and the prospectof application of high LET accelerator beams in plant mutation breeding.

서 론

가속기 빔의 특징 및 생물효과

가속기빔을 이용한 품종 개발 현황

국내 대형가속기 구축 현황 및 육종분야 활용 전망

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