Locus microsyntenic comparison between
. A) The evolutionary history was inferred using the maximum likelihood method based on the general time reversible model in MEGA5. Bootstrap values >60% are indicated above branches. The tree is drawn to scale, with branch lengths measured in terms of the number of substitutions per site. B) MAUVE alignments of two genomic fragments of about 50 Kb of S. lycopersicum and S. tuberosum chromosome 5. Similar locally collinear blocks are labelled with the same colour and connected by fine lines. The boundaries of coloured blocks indicate the breakpoints of genome rearrangements.