In soybean cotyledonary transformation,Agrobacterium infection is influenced by many factors.The cultivation stage of Agrobacterium strain and infectious concentration were studied in this research.Results showed that...In soybean cotyledonary transformation,Agrobacterium infection is influenced by many factors.The cultivation stage of Agrobacterium strain and infectious concentration were studied in this research.Results showed that the highest rate of resistant shoots was obtained when the strain cultivation concentration was OD 600 =0.6,and the infectious concentration was OD 600 =0.5.Seven soybean cultivars in North China were also screened for high susceptibility to Agrobacterium and three genotypes were found to be s...展开更多
Genotype independent transformation andregeneration of Indian cotton(Gossypiumhirsutum L.)cultivar was standardized with Bt-Cry 1A(b)gene by Agrobacterium-mediation.Apical meristem of elite G.hirsutum cultivarLRK-516 ...Genotype independent transformation andregeneration of Indian cotton(Gossypiumhirsutum L.)cultivar was standardized with Bt-Cry 1A(b)gene by Agrobacterium-mediation.Apical meristem of elite G.hirsutum cultivarLRK-516 and LRA 5166 were co-cultivated withA.tumefaciens LBA 4404 carrying synthetic Bt-展开更多
An efficient procedure was described for the transformation of the monocotyledonous oriental hybrid lily, Lilium cv. Siberia. by Agrobacterium-mediated genetic transformation via leaves regeneration, The leaves of lea...An efficient procedure was described for the transformation of the monocotyledonous oriental hybrid lily, Lilium cv. Siberia. by Agrobacterium-mediated genetic transformation via leaves regeneration, The leaves of leaflets which derived from bulbs were sliced into 1.0 cm long and were co-cultivated with A. tumefaciens strain LBA4404/pB2AE12, which harbored a vector carrying the neomycin phosphotransferase, DREB2A genes in the T-DNA region. The suitable genetic transformation condition was determined as follows： the bacterial concentration reached 0.5-0.6 （OD600）, 15 min infection time, 20 mg.L^-1 acetosyingone, and 10.6 mmol.L^-1 NH4NO3 medium was used for co-cultivation 3 days, delayed 7 days for selecting by 30 mg.L^-1 kanamycin containing regeneration medium. Efficient shoot regeneration was observed on MS medium supplemented with 1.0 mg.L^-1 naphthaleneacetic acid, 0.5 mg.L^-1 benzyladenine and 0.1 mg.L^-1 Kinetin after about 6 weeks culture. The presence ofDREB2A gene in the genomic DNA of regenerated plants was detected by means of PCR analysis.展开更多
基金Supported by New Variety Breeding Key Project of Genetic Modified Organisms (2008ZX08004-002)Special Research Fund from Harbin Technology and Science Innovation (2008RFQXN013)Postdoctoral Fund and Doctoral Fund of Northeast Agricultural University
文摘In soybean cotyledonary transformation,Agrobacterium infection is influenced by many factors.The cultivation stage of Agrobacterium strain and infectious concentration were studied in this research.Results showed that the highest rate of resistant shoots was obtained when the strain cultivation concentration was OD 600 =0.6,and the infectious concentration was OD 600 =0.5.Seven soybean cultivars in North China were also screened for high susceptibility to Agrobacterium and three genotypes were found to be s...
文摘Genotype independent transformation andregeneration of Indian cotton(Gossypiumhirsutum L.)cultivar was standardized with Bt-Cry 1A(b)gene by Agrobacterium-mediation.Apical meristem of elite G.hirsutum cultivarLRK-516 and LRA 5166 were co-cultivated withA.tumefaciens LBA 4404 carrying synthetic Bt-
基金Supported by Postdoctoral Fund of Settling Down in Heilongjiang Province (LBH-Z08259)Program for Dr. Research Fund of Northeast Agricultural University
文摘An efficient procedure was described for the transformation of the monocotyledonous oriental hybrid lily, Lilium cv. Siberia. by Agrobacterium-mediated genetic transformation via leaves regeneration, The leaves of leaflets which derived from bulbs were sliced into 1.0 cm long and were co-cultivated with A. tumefaciens strain LBA4404/pB2AE12, which harbored a vector carrying the neomycin phosphotransferase, DREB2A genes in the T-DNA region. The suitable genetic transformation condition was determined as follows： the bacterial concentration reached 0.5-0.6 （OD600）, 15 min infection time, 20 mg.L^-1 acetosyingone, and 10.6 mmol.L^-1 NH4NO3 medium was used for co-cultivation 3 days, delayed 7 days for selecting by 30 mg.L^-1 kanamycin containing regeneration medium. Efficient shoot regeneration was observed on MS medium supplemented with 1.0 mg.L^-1 naphthaleneacetic acid, 0.5 mg.L^-1 benzyladenine and 0.1 mg.L^-1 Kinetin after about 6 weeks culture. The presence ofDREB2A gene in the genomic DNA of regenerated plants was detected by means of PCR analysis.
