Stable and unstable mutations in the 5' non-translated regions of tomato aspermy virus RNAs 1 and 2 generated de novo from infectious cDNA clones containing a cauliflower mosaic virus 35S promoter.

Abstract excerpt

Tomato aspermy virus RNAs derived from infectious cDNA clones exhibited a number of sequence alterations in the 5' non-translated region (NTR). These included a deletion of the first four residues in both RNAs 1 and 2, transversion of residue 5 from a G to a U in RNA 1, and transversion of A to C at position of 50 of RNA 1. These alterations were not stable in the infected plants while the insertion of a U...

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