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http://dx.doi.org/10.5333/KGFS.2009.29.3.165

Factors Influencing Agrobacterium-Mediated Transformation Efficiency in Perennial Ryegrass  

Lee, Ki-Won (National Institute of Animal Science, RDA)
Kim, Ki-Yong (National Institute of Animal Science, RDA)
Lee, Joung-Kyong (National Institute of Animal Science, RDA)
Park, Hyung-Soo (National Institute of Animal Science, RDA)
Kim, Kyung-Hee (Division of Applied Life Science(BK21 program), Gyeongsang National University)
Lee, Byung-Hyun (Division of Applied Life Science(BK21 program), Gyeongsang National University)
Lee, Sang-Hoon (National Institute of Animal Science, RDA)
Publication Information
Journal of The Korean Society of Grassland and Forage Science / v.29, no.3, 2009 , pp. 165-170 More about this Journal
Abstract
A system for the production of transgenic plants has been developed for perennial ryegrass (Lolium perenne L.) via Agrobacterium-mediated transformation. Included in this study were two factors which may affect the gene transfer efficiency: concentrations of acetosyringone (AS, 0 to 300 ${\mu}M$), and co-culture period (1 to 7 days). Both factors were very important to achieve high efficiency gene transformation in the perennial ryegrass. The highest transformation efficiency was obtained when embryogenic calli were inoculated with Agrobacterium in the presence of 100 ${\mu}M$ AS with the culture medium for 5 days. Phosphinothricin resistant calli were developed with into complete plants. GUS histochemical assay, polymerase chain reaction (PCR) and Northern blot analysis of transgenic plants demonstrated that transgenes were integrated into the genome of perennial ryegrass. Using this protocol, it was possible to obtain transformants efficiently for further study.
Keywords
Agrobacterium; Acetosyringone; GUS; Perennial ryegrass; Transformation;
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