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GrainGenes Reference Report: PNA-96-11117

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Reference
PNA-96-11117
Title
Single-copy transgenic wheat generated through the resolution of complex integration patterns
Journal
Proceedings of the National Academy of Sciences, USA
Year
1999
Volume
96
Pages
11117-11121
Author
Srivastava V
Anderson OD
Ow DW
Abstract
Summary: Genetic transformation of plants often results in multiple copies of the introduced DNA at a single locus. To ensure that only a single copy of a foreign gene resides in the plant genome, we used a strategy based on site-specific recombination. The transformation vector consists of a transgene flanked by recombination sites in an inverted orientation. Regardless of the number of copies integrated between the outermost transgenes, recombination between the outermost sites resolves the integrated molecules into a single copy. An example of this strategy has been demonstrated with wheat transformation, where four of four multiple-copy loci were resolved successfully into single-copy transgenes
Keyword
alleles
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