[Objective]The aimed to optimize transformation system for Agrobacterium-mediated green cotton shoot tip and provide reference for genetic engineering-assisted breeding of color cotton. [Method]With shoot tip of natur...[Objective]The aimed to optimize transformation system for Agrobacterium-mediated green cotton shoot tip and provide reference for genetic engineering-assisted breeding of color cotton. [Method]With shoot tip of natural green cotton as receptor and by using Agrobacterium-mediated transformation method,the optimum conditions of regeneration system were obtained. [Result]Combining with vacuum infiltration,3-old-day shoot tips were infected for 10 minutes in Abarobacterium suspension with OD600 value about 0.5 followed by co-culture for 24 h on the medium containing MS+l mg/L KT,pH value of 5.8. The regeneration culture was conducted in MS medium containing l mg/L KT and increasingly 30,50 and 70 mg/L Kan. The highest transformation frequency was 34.6%,and the positive resistant plantlets of green cotton 9804 were obtained. [Conclusion]Green cotton is more beneficial than white cotton to conduct genetic transformation.展开更多
文摘[Objective]The aimed to optimize transformation system for Agrobacterium-mediated green cotton shoot tip and provide reference for genetic engineering-assisted breeding of color cotton. [Method]With shoot tip of natural green cotton as receptor and by using Agrobacterium-mediated transformation method,the optimum conditions of regeneration system were obtained. [Result]Combining with vacuum infiltration,3-old-day shoot tips were infected for 10 minutes in Abarobacterium suspension with OD600 value about 0.5 followed by co-culture for 24 h on the medium containing MS+l mg/L KT,pH value of 5.8. The regeneration culture was conducted in MS medium containing l mg/L KT and increasingly 30,50 and 70 mg/L Kan. The highest transformation frequency was 34.6%,and the positive resistant plantlets of green cotton 9804 were obtained. [Conclusion]Green cotton is more beneficial than white cotton to conduct genetic transformation.