High-efficiency phosphinothricin-based selection for alfalfa transformation View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2007-08-16

AUTHORS

Andrew Montague, Asma Ziauddin, Raymond Lee, W. Michael Ainley, Judith Strommer

ABSTRACT

Despite the significant advantages of using herbicide resistance for selection of genetically engineered plants, alfalfa transformation has relied primarily on selection for antibiotic resistance. In the few studies reporting the use of resistance to the herbicide phosphinothricin (PPT), transformation efficiencies were low. The present investigation describes a PPT-based selection system for alfalfa transformation that uses the phosphinothricin acetyl-transferase (pat) gene as a selectable marker and 5.0 mg l−1 of bialaphos as the selective agent. The method achieves transformation efficiencies, measured as the percentage of explants giving rise to one or more transformed plantlets, greater than 50%. These plantlets accumulated detectable amounts of PAT at levels varying from 2 to 1367 pg μg−1 total protein. Transformed plants transferred to soil in the greenhouse were phenotypically normal and exhibited resistance to bialaphos leaf painting at 5 g l−1 and applications of PPT equivalent to field-level use (0.5 kg ha−1). More... »

PAGES

29-36

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s11240-007-9274-8

DOI

http://dx.doi.org/10.1007/s11240-007-9274-8

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1030424597


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