Comparing maps of multiple species using the tomato genetic map as common reference. (a) Species 1 and 2 both share the same gene order with tomato. (b) Species 1 and 2 both have an inversion and a translocation relative to tomato. Markers in blue and yellow segments come from two other tomato chromosomes. Breakpoint region (indicated by a black bar) of the translocation between species 1 and tomato is the interval of markers "g" and "i", and similarly that between species 2 and tomato is the interval of markers "h" and "i". (c) Species 1 and 2 each have an independent inversion relative to tomato. Breakpoint regions are indicated by black bars next to the tomato map.
Wu and Tanksley BMC Genomics 2010 11:182 doi:10.1186/1471-2164-11-182