초록

화색은 화훼 육종의 주요한 목표형질이다. 최근 유전공학 기술의 발달로 기존의 전통육종에서는 볼 수 없었던 파란장미와 파란카네이션과 같은 새로운 화색 개발이 성공적으로 보고되었다. 플라보노이드 생합성에 관해 축적된 지식기반 연구 결과를 바탕으로 새롭고 독특한 형질의 화색을 도입하는 것이 가능하게 된 것이다. 이러한 화색변경은 플라보노이드 대사경로의 조절, 즉 내재유전자의 발현조절 및 새로운 플라보노이드 합성 또는 특정 플라보노이드 합성을 위한 외래유전자의 추가도입과 플라보노이드 대사 전체를 조절하는 전사인자의 도입을 통해서 이루어져 왔다. 그러나 보다 실증적으로 이러한 플라보노이드 대사를 조절하기 위해서는 작물별 내재 플라보노이드의 조절 기작에 대한 이해를 바탕으로 목표로 하는 플라보노이드 합성을 위해 보다 정교한 대사흐름의 조절이 요구된다. 본 총설에서는 화훼작물의 화색변경 성공 예들을 자세히 소개하고 그 요인 분석을 통해 향후 더 성공적인 화색변경의 전략을 수립하는데 도움이 되고자 한다.

Abstract

Flower color is one of the main target traits in the flower breeding. Recently, technological advances in genetic engineering have been successfully reported the flower colors, such as blue roses and blue carnations that are impossible to develop by traditional breeding. Accumulated knowledge-based approaches for flavonoid biosynthesis enabled to introduce novel and unique colors into flowers. These flower color modifications have been made through the regulation of flavonoid metabolic pathway - control of endogenous gene expression and introduction of foreign genes to produce novel and specific flavonoids - and the introduction of transcription factors that are known to regulate sets of genes being involving in the flavonoid biosynthetic pathway. More empirical regulation of the flavonoids metabolism requires the understanding for regulatory mechanism of intrinsic flavonoids depending on the flower crops and the very sophisticated control of flavonoid metabolic flow. In this review, we summarized successful examples of flower color modification. It might be useful to deduce the strategy for the creation of exquisite colors in flower plants.

주제어

#안토시아닌   #유전자변형   #대사공학   #전사인자  

참고문헌 (66)

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