KR20070016577A - 목표유전자의 식물세포 내로의 도입을 증가시키는 방법 - Google Patents
목표유전자의 식물세포 내로의 도입을 증가시키는 방법 Download PDFInfo
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- KR20070016577A KR20070016577A KR1020050071372A KR20050071372A KR20070016577A KR 20070016577 A KR20070016577 A KR 20070016577A KR 1020050071372 A KR1020050071372 A KR 1020050071372A KR 20050071372 A KR20050071372 A KR 20050071372A KR 20070016577 A KR20070016577 A KR 20070016577A
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Abstract
Description
형질전환 단계 | 배 지 | 조 성 |
캘러스 유도 및 증식 | 2N6 | N6 매크로(macro), 미세 염(micro salt), N6 비타민. 카사미노산(casamino acid) 300mg/L, 프롤린 500mg/L, 수크로오스 30g/L, 글루타민 500mg/L, 젤라이트 2.5g/L, 2.4-D 2mg/L, pH 5.8 |
아그로박테리움 배양 | AB-ST | AB 완충액, 염, 글루코오스 5g/L, 박토-아가(Bacto-agar) 15g/L, 스펙티노마이신(spectinomycine) 50mg/L, 테트라사이클린(tetracycline) 10mg/L, pH 7.0 |
아그로박테리움 현탁 및 접종 | AAM | AA 매크로, 미세 염, 아미노산 스탁(stock), MS 비타민, 철 스탁(stock), 카사미노산 500mg/L, 수크로오스 68.5g/L, 글루코오스 36g/L, 아세토시린곤(acetosyringone) 100uM/L, pH 5.8 |
공동배양 | 2N6-AS | 2N6 배지, 아세토시린곤 100uM/L, 글루코오스 10g/L, 젤라이트 2.5g/L, 2.4-D 2mg/L, pH 5.2 |
1/2-2N6- AS-New | 1/2-2N6 배지, 아세토시린곤 100uM/L, 글루코오스 10g/L, L-시스테인 10.5mg/L, 티오황산나트륨 1mM, 디티오트레이톨 1mM, 질산은 5mg/L, 젤라이트 3.0g/L, 2.4-D 2mg/L, pH 5.2 | |
형질전환 캘러스 선발 | 2N6-CP | 2N6 배지, 세포탁심(cefotaxime) 250mg/L, L-포스피노트리신(L-phosphinotricine) 6mg/L, 젤라이트 2.5g/L, 2.4-D 2mg/L, pH 5.8 |
재분화 | MSR-CP | MS 매크로, 미세 염, MS 비타민, 세포탁심 250mg/L, NAA 1mg/L, 키네틴(Kinetine) 5mg/L, 소르비톨 30g/L, 말토오스 20g/L, L-포스피노트리신 3mg/L, 젤라이트 4g/L, pH 5.8 |
뿌리 유도 | MS0 | MS 매크로 및 미세 염, MS 비타민, 수크로오스 30g/L, 젤라이트 2.5g/L, pH 5.8 |
캘러스 유도 | 재분화 | ||
N6(Chu) 배지 | 첨가량 | MS 배지 | 첨가량 |
N6 매크로 염 KNO3 (NH4)2SO4 KH2PO4 MgSO4 (또는 MgSO4·7H2O) CaCl2 (또는 CaCl2·2H2O) | 2.83g/l 463mg 400mg 90mg (또는 185mg) 125.33mg (또는 166mg) | 매크로 염 KNO3 NH4NO3 KH2PO4 MgSO4 CaCl2 | 1900 mg 1650 mg 170 mg 180.54 mg 332.02 mg |
철 (또는 FeNaEDTA) | 36.70mg | 철 FeNaEDTA | 36.70 mg |
N6 미세 염 MnSO4·H2O ZnSO4·7H2O H3BO3 KI Na2MoO4·2H2 CuSO4·5H2O CoCl2.6H2O | 3.3mg 1.5mg 1.6mg 0.8mg - - - | 미세 염 MnSO4·H2O ZnSO4·7H2O H3BO3 KI Na2MoO4·2H2 CuSO4·5H2O (또는 CuSO4) CoCl2.6H2O | 16.9 mg 8.6 mg 6.20mg 0.83mg 0.25 mg 0.025mg 또는 0.016mg 0.025mg |
N6 비타민 니코틴산 티아민·HCl 피리독신·HCl 글리신 | 0.5mg 0.1mg 0.5mg 2.0mg | 비타민 니코틴산 티아민·HCl 피리독신·HCl 글리신 미오-이노시톨 | 0.5mg 0.1mg 0.5mg 2.0mg 100mg |
처리 내용 | 종래 방법 (2N6-AS) | 본 발명의 방법 (1/2-2N6-AS-New) | |
배지 조성 | 기본배지(2N6) | 기준량 | 기준량의 1/2량 |
항산화 화합물 | 없음 | 3종의 항산화 화합물 첨가 (L-시스테인 10.5mg/L, 티오황산나트륨 1mM, 디티오트레이톨 1mM) | |
아그로박테리움 성장 및 에틸렌 활성 억제 물질 | 없음 | 질산은 5mg/L | |
젤라이트 양 | 2.5g/L | 3.0g/L | |
여과지(filterpaper) | 없음 | 여과지(#1)를 배지 위를 덮어줌 | |
온도 처리 | 26.5℃ 고정 | 26.5℃→23.5℃(3도차 변온처리) | |
공동배양 기간 | 3일 | 26.5℃(1일)→23.5℃(4일-8일) 5일 이상 처리 |
품 종 | 처리별 | 공동배양기 간 | 피타젤 (Phytagel) 함 량 | 형질전환 캘러스 수 | 형질전환 식물체 수 (독립 라인) | 형 질 전환율 | 증가율 |
흑남벼 | 종래방법 | 3 일 | 2.5 g | 500 개 | 18 개 | 3.6 % | 100 |
본 발명 | 7 | 3.0 | 280 | 77 | 27.5 | 764 | |
본 발명 | 7 | 2.5 | 180 | 17 | 9.4 | 261 | |
일미벼 | 종래방법 | 3 | 2.5 | 240 | 8 | 3.33 | 100 |
본 발명 | 7 | 3.0 | 280 | 19 | 6.79 | 204 | |
일품벼 | 종래방법 | 3 | 2.5 | 250 | 0 | 0 | 100 |
본 발명 | 7 | 3.0 | 220 | 2 | 0.9 | 190 |
품 종 | 벡 터 | 공동배양기 간 | 피타젤 함 량 | 형질전환 캘러스 수 | 형질전환 식물체 수 (독립 라인) | 형 질 전환율 |
흑남벼 | pMJC-GB-IFS1 | 7 일 | 3.0 g | 240 개 | 50 개 | 20.8 % |
pMJC-GB-IFS2 | 7 | 3.0 | 280 | 90 | 32.1 | |
일미벼 | pMJC-GB-하핀 | 7 | 3.0 | 940 | 117 | 12.4 |
Claims (10)
- (A) 외래의 목적유전자 및 선발인자를 포함하는 식물 형질전환용 발현벡터를 제조하고 완성된 재조합 플라스미드를 아그로박테리움에 도입하는 단계; (B) 상기 형질전환된 아그로박테리움을 식물체의 목적 조직과 공동배양하는 단계; (C) 상기 공동배양한 식물체의 조직을 선발배지에서 선발하고 증식시키는 단계; 및 (D) 상기 선발된 조직을 재분화시키고 생산된 식물체를 순화시키는 단계;를 포함하는 형질전환 식물체의 제조방법에 있어서,공동배양 단계에서 질산은과 함께 항산화 화합물로서 L-시스테인, 티오황산나트륨 및 디티오트레이톨로 이루어진 군에서 선택된 1종 이상을 첨가하여 배양함을 특징으로 하는 제조방법.
- 제 1항에 있어서, 상기 (B) 단계의 목적조직은 벼, 콩, 보리, 옥수수, 감자, 밀, 팥, 귀리 및 수수 등의 식량작물; 토마토, 고추, 딸기, 파, 양파, 당근, 배추, 무, 수박, 오이, 양배추 및 호박 등의 채소작물; 인삼, 참깨, 들깨, 땅콩, 유채, 목화, 사탕수수, 사탕무우 및 담배 등의 특용작물; 사과나무, 배나무, 대추나무, 포도, 감귤, 감, 살구, 바나나, 양다래, 장미, 국화, 백합, 거베라, 카네이션, 프리지아, 글라디올러스 및 튤립 등의 과수 및 화훼식물; 오차드그라스, 알팔파, 톨페스큐, 레드클러버 및 라이그라스 등의 사료작물; 및 아라비돕시스 등의 기타식물로 이루어진 군에서 선택된 것임을 특징으로 하는 방법.
- 제 1항에 있어서, 상기 형질전환용 식물이 벼인 것을 특징으로 하는 방법.
- 제 1항에 있어서, 상기 (C)의 공동배양 단계에서 기본배지 2N6 조성을 1/2로 줄이고, 항산화물질인 L-시스테인 5∼50mg/L, 티오황산나트륨 0.1∼5mM 및 디티오트레이톨 0.1∼5mM를 첨가하는 것을 특징으로 하는 방법.
- 제 1항에 있어서, 상기 (C)의 공동배양 단계에서 질산은 1∼10mg/L을 첨가하는 것을 특징으로 하는 방법.
- 제 1항에 있어서, 상기 (C)의 공동배양 단계에서 젤라이트 2.6∼5g/L를 첨가하는 것을 특징으로 하는 방법.
- 제 1항에 있어서, 상기 (C)의 공동배양 단계에서 공동배지 위에 여과지(Watman #1)를 1매 덮고 그 위에 캘러스를 두는 과정을 더 포함함을 특징으로 하는 방법.
- 제 1항에 있어서, 상기 (C)의 공동배양 단계에서 처리 온도를 처음 하루는 26∼28℃에서 처리한 후 나머지 기간은 23∼25℃로 처리하여 처음의 온도보다 3℃ 변경하는 변온처리 과정을 더 포함함을 특징으로 하는 방법.
- 제 1항에 있어서, 상기 (D)의 재분화 식물체를 유도하는 단계에서 식물의 재분화 배지에 NAA((Naphthalene Acetic Acid) 0.1∼5mg/L, 키네틴(Kinetine) 1∼10mg/L, 소르비톨 20∼40g/L 및 말토오스 10∼30g/L로 이루어진 배지 조성을 사용하는 과정을 포함하는 것을 특징으로 하는 방법.
- 제 2항 내지 제 9항 중 어느 한 항에 의한 방법에 의해 목표 유전자가 도입된 형질전환 식물체 또는 그의 종자.
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