Factors influencing Agrobacterium tumefaciens-mediated genetic transformation of Eleusine coracana (L.) Gaertn

被引:39
作者
Sharma, Manju [3 ]
Kothari-Chajer, Aditi [1 ]
Jagga-Chugh, Swati [2 ]
Kothari, S. L. [1 ,2 ]
机构
[1] Univ Rajasthan, Dept Bot, Expt Morphogenesis & Plant Tissue Culture Lab, Jaipur 302004, Rajasthan, India
[2] Univ Rajasthan, Ctr Converging Technol, Jaipur 302004, Rajasthan, India
[3] Jimma Univ, Dept Hort & Plant Sci, Coll Agr & Vet Med, Jimma, Ethiopia
关键词
Finger millet; Plant regeneration; Transgenic plants; GUS; Ragi; npt II; PLANT-REGENERATION; T-DNA; EMBRYOGENIC CALLUS; MATURE EMBRYO; RICE; EXPRESSION; EXPLANTS;
D O I
10.1007/s11240-010-9846-x
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
Agrobacterium-mediated transformation protocol has been developed for Eleusine coracana (var. PR-202) by varying several factors which influence T-DNA delivery. Green nodular regenerative calli with meristematic nodules of seed origin were used as the target tissue for Agrobacterium tumefaciens-mediated gene transfer. The highest frequency of transformation (44.4%) was observed when callus was infected, co-cultivated and incubated at 22A degrees C. Incorporation of higher level of CuSO4 in the regeneration medium had significantly positive effect on the recovery of transformed plants. PCR analysis of T (0) and T (1) generation plants with nptII-specific primers revealed the amplification of nptII gene. Southern blot analysis of six regenerated plants confirmed selectable marker gene integration in three plants. This is a first report on Agrobacterium-mediated genetic transformation of finger millet and will pave the way for further studies in this and other millet crops.
引用
收藏
页码:93 / 104
页数:12
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