An Efficient Transformation System for Chickpea (Cicer Arietinum L.)
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A reproducible and efficient transformation method was developed for Desi and Kabuli chickpeas (Cicer arietinum L.) using germinated seedlings as sources of explants. Slices derived from plumules were the most efficient at generating transformed shoots. The AGL1 Agrobacterium-treated explants were first incubated on thidiazuron-containing media, then selected using phosphinothricin. Resistant shoots were successfully transferred to soil either by grafting or in vitro rooting. In experiments each taking 4-9 months, a total of 41 confirmed transformed lines were created using embryo axis slices as source explants, giving a transformation frequency of 5.1%. Southern analysis and histochemical and leaf painting assays demonstrated integration and expression of the transgenes in the initial transformants and two generations of progeny.
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