Figure 5.

Phylogenetic relationships of monomers of Cast1–Cast6 families presented in ML trees (A–F). Terminal branches are coloured according to the chromosome of origin. Monomers originating from a single array and grouped in a single branch of the tree are not specifically marked. Dominant groups which display putative recent exchange events are indicated with arches. Black arches mark monomers that group together in the tree, although they originate from arrays located on non-homologous chromosomes. Grey arches represent monomers in chromosome-specific arrays distant one from the other (>20 kb). Blank arches indicate monomers located in dominant chromosome-specific arrays positioned <20 kb apart. Symbols indicate monomers originating from the same array but dispersed in the tree. The branch support values are indicated at major branch points. (G) FISH of Cast6 family on T. castaneum chromosomes. Arrow points to the CH3 chromosome.