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Cassava latent virus infections mediated by the Ti plasmid of Agrobacterium tumefaciens containing either monomeric or dimeric viral DNA

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Abstract

Plant infections with cassava latent virus (CLV) were mediated by the Ti plasmid of Agrobacterium tumefaciens containing either monomeric or dimeric copies of the virus genome. The CLV DNAs caused typical symptoms when they were inoculated in Agrobacterium strains C58, LBA4404 and a virE mutant A1026, but not other Agrobacterium strains with mutations in other vir loci or an E. coli polA strain. Virus-specific DNA forms characteristic of normal CLV infections were found after such infection. Characterization of progeny CLV DNA from selected plants identified several infectious mutants. These were found to be small insertions and/or deletions in the coat protein gene of DNA 1 and in the intergenic region of DNA 2.

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Morris, B.A.M., Richardson, K.A., Andersen, M.T. et al. Cassava latent virus infections mediated by the Ti plasmid of Agrobacterium tumefaciens containing either monomeric or dimeric viral DNA. Plant Mol Biol 11, 795–803 (1988). https://doi.org/10.1007/BF00019520

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  • DOI: https://doi.org/10.1007/BF00019520

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