Fig. 2.

Recombination breakpoints are not randomly distributed. (a) Distribution of 53 homologous recombination breakpoints within experimentally observed recombinants. (b) Distribution of 73 homologous recombination breakpoints observed in natural MSV recombinants (Varsani et al., 2008b). (c) Distribution of 107 non-homologous recombination breakpoints detected in subgenomic sequences sampled during recombination experiments. (d) Distribution of 83 non-homologous recombination breakpoints detected in subgenomic sequences sampled from natural MSV infections. Genome regions indicated above the plots are labelled as in Fig. 1. Nucleotides 1–111 are represented in both the first and last bars of the histograms because the MSV genome length is not an exact multiple of 200.