Cytoplasmic gene inhibition or gene expression in transfected plants by a tobraviral vector
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United States of America Patent
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Mar 3, 2009
Grant Date -
May 6, 2004
app pub date -
Aug 4, 2003
filing date -
Jan 16, 1998
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Expired
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Abstract
This invention is directed to a monopartite RNA viral vector comprising modified tobravirus RNA-1 comprising an inserted foreign RNA sequence. This invention is also directed to a bipartite RNA viral vector derived from a tobravirus, wherein the vector comprises one or more foreign RNA sequences. The invention is directed to a method of silencing one or more endogenous plant host genes and a method of simultaneously silencing a plant host gene and expressing a foreign gene in a plant host. Such methods comprise infecting a plant host with a bipartite vector comprising modified tobravirus RNA-1 and RNA-2. The invention is further directed to a method of compiling a plant functional gene profile, a method of changing the phenotype or biochemistry of a plant host, and a method of determining the presence of a trait in a plant host, using a monopartite or bipartite viral vector derived from a tobravirus.
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