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NTIS 바로가기Journal of plant biotechnology = 식물생명공학회지, v.44 no.4, 2017년, pp.438 - 447
김진아 (농촌진흥청 국립농업과학원 생물소재공학과) , 김정선 (농촌진흥청 국립농업과학원 생물소재공학과) , 홍준기 (농촌진흥청 국립농업과학원 생물소재공학과) , 이연희 (농촌진흥청 국립농업과학원 생물소재공학과) , 이수인 (농촌진흥청 국립농업과학원 생물소재공학과) , 정미정 (농촌진흥청 국립농업과학원 생물소재공학과)
Flowering is one of the most important development traits related to the production of Brassica rapa crops. After planting, a sudden low temperature triggers premature flowering, which leads to a reduction in the yield and quality of harvested production. Therefore, understanding the mechanism of fl...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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개화란? | 개화는 식물에게 있어서 가장 중요한 발달 특성 중 하나이다. 개화시기는 내생요인과 환경 자극 등에 의해 조절되는데, 개화 조절 기작에 관여하는 많은 유전자들이 모델식물인 애기장대를 중심으로 밝혀져 왔으며 광주기(photoperiod), 춘화(vernalization), 내생(endogenous) 그리고 지베렐린(GA)에 의해 유도되는 기작에 관련된 유전자들에 대한 많은 연구가 있어왔다(Simpson et al. | |
배추속 식물의 개화형을 춘화형과 비춘화형으로 구분하여 주는 마커가 가져올 수 있는 이점은? | 본 논문에서는 배추 제놈에 보존되어 있는 생체시계 유전자의 서열변이를 이용하여 배추속 식물의 개화형을 춘화형과 비춘화형으로 구분하여 주는 마커를 개발하였다. 이러한 연구결과는 배추속 식물의 생육 초기에 개화형을 판별하여 재배 작형 예측에 활용되어, 배추속 식물의 교배 육종 및 채종 재배 시 선발에 유용하게 이용될 수 있을 것이다. 또한 일장형 개화 식물과 달리 생체시계 유전자와 춘화형 개화조절과의 관계는 많이 알려져 있지 않다. | |
한국과 중국에서 소비량이 많은 배추에 속하는 품종은? | 한국과 중국에서 소비량이 많은 배추 (Chinese cabbage)는 배추종(Brassica rapa)에 속하는 작물로, 배추(Chinese cabbage; ssp. pekinensis), 박초이(Pak choi; ssp. chinensis), 우타카이(Wutacai; ssp. narinosa), 순무(Turnip; ssp. rapa), 카이신(Caixin; ssp. parachinensis), 미즈나(Mizuna; ssp. nipposinica), 브로콜리토(Broccoletto; ssp. broccoletto)를 비롯하여 순무평지(Turnip rape; ssp. oleifera)나 옐로우사순(Yellow sarson; ssp. tricolaris)과 같은 유지종자 작물 등이 이에 속한다. 이들 자연 발생 배추 종들(natural accessions)의 개화 기작은 춘화와 연관이 있는 것으로 알려져 있으나, 유채종의 하나로 알려진 Yellow sarson 이나 일본 겨자 시금치로 알려져 있는 Komatsuna 등은 저온처리 없이도 파종 후 40일 전후가 지나면 추대한다(Gómez-Campo 1999). |
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