Abstract:
PURPOSE: A method for enhancing transformation efficiency of Brassica campestris L. using Agrobacterium is provided to establish stable transformation system of high efficiency. CONSTITUTION: A method for enhancing transformation efficiency of Brassica campestris L. comprises: a step of performing dark germination of Brassica campestris L. seeds at 24-26°C for 3-5 days; a step of culturing the hypocotyl part of Brassica campestris L. in a MS medium containing 0.5-1.5 mg/L of NAA and 3-5 mg/L of BA at 22-24°C for 1-3 days by photo-cultivation; a step of suspending Agrobacterium tumefaciens containing a recombinanat plant expression vector to a medium; a step of dipping the hypocotyl part of Brassica campestris L. in the prepared strain-inoculated medium for 5-15 minutes; a step of culturing the hypocotyl part of Brassica campestris L. in a medium I containing NAA, BA, AgNO_3, and antibiotics for 2-3 months to induce a shoot; and a step of culturing the shoot in a medium II.
Abstract:
PURPOSE: A method for growing Brassica campestris L. with turnip mosaic virus resistance is provided to stably and effectively select and grow TuMV resistance. CONSTITUTION: A Brassica campestris L. with turnip mosaic virus resistance is prepared by mutation of Brassica campestris L.-derived eIF(iso)4E 49th, 95th, 150th, or 191th amino acid. A 49th, 95th, 150th, or 191th amino acid is substituted with leucine.
Abstract:
본 발명은 아그로박테리움을 이용한 마늘의 형질전환 효율을 증가시키는 방법 및 상기 방법에 의해 제조된 마늘 식물체에 관한 것으로, 더욱 상세하게는 (1) MS 배지에 0.5~2 mg/L의 2,4-D(2,4-dichlorophenoxyacetic acid)와 0.05~0.2mg/L의 IAA(indoleacetic acid)를 첨가하여 7~9주간 마늘 캘러스를 유도하는 단계; (2) 상기 유도된 마늘 캘러스에 재조합 식물 발현 벡터를 포함하는 아그로박테리움 튜머파시엔스 (Agrobacterium tumefaciens) 를 공동배양 배지에서 공동배양하여 형질전환시키는 단계; (3) 상기 공동배양한 마늘 세포를 항생제가 첨가된 선발 배지에서 11~13주간 선발하는 단계; 및 (4) 상기 선발된 마늘 세포를 재분화 배지에서 재분화하는 단계를 포함하는 마늘의 형질전환 효율을 증가시키는 방법과 상기 방법에 따라 제조된 마늘 식물체에 관한 것이다. 마늘, 아그로박테리움, 형질전환, 방법, 제초제, 저항성
Abstract:
PURPOSE: A simple and quick detection method of disease resistance red pepper using DNA marker is provided which selects bacterial spot disease resistant individuals of red pepper independently of environment conditions thus it saves money and time for the selection. CONSTITUTION: DNA pools are made from each 10 resistant and susceptible plant leaves.400 random primer consisted of 10 nucleotides are used to perform PCR and random amplified polymorphic DNA (RAPD) is screened. Two primers (OP3405 and OP3610) showing specific DNA bands to resistant DNA pool are selected as a resistance marker. Genetic analysis using BC1F1 variety reveals that OP3405 is located at 5.4 cm from resistant gene and OP3610 at 9.3 cM. Two RAPD markers are cloned and nucleotide sequence is determined. Using sequences of two marker, sequence specific primers are synthesized and used for amplification of sequence characterized amplified region (SCAR) marker. SCAR markers are specifically amplified from disease resistance plant and used for the selection of disease resistance plant.