Figure 7

Hypothetical derivation of chromosome A3. Chromosome A3 has originated due to inversion (i), translocation (t), fusion (f), and recombination (r) of six AK chromosomes (AK3, AK4, AK5, AK6, AK7, and AK8). The ancestral chromosomes are presumed to bear NORs (black rectangles) and centromeres are represented as empty spheres. The minichromosomes consisting of a NOR and a centromere that resulted from translocation events have presumably been lost.