Figure 2: Chromosome mapping of Melitaea cinxia to Bombyx mori and Heliconius melpomene.

(a) One-to-one orthologues (4,485) connecting M. cinxia and B. mori chromosomes and (b) 3,869 one-to-one orthologues connecting M. cinxia and H. melpomene chromosomes. M. cinxia chromosomes are numbered according to chromosome length from the largest to the smallest. The links leading from M. cinxia chromosomes are pooled into bins that are ordered within chromosomes. Bands drawn in M. cinxia chromosomes represent bin borders. Chromosome 1 is the Z chromosome in M. cinxia and B. mori. The fusion chromosomes are shaded with blue and the orthologous chromosomes in M. cinxia with red.