Figure 4

Estimates of chromosomal rearrangements that occurred in the base of the teleost lineage. (A, D and G) The teleost ancestral chromosomes and the chromosomal rearrangement events based on the estimates of Kasahara et al. [19]. (B, E and H) The Oxford grids between the Japanese eel and medaka. (C, F and I) Possible scenarios of the chromosomal rearrangement events and predictive models of Oxford grids between the Japanese eel and medaka for each scenario. Stars represent the divergence points of the two species. In the Oxford grids, eel chromosomes are labeled as A and B, and their duplicates are labeled as A’ and B’. Medaka chromosomes are labeled as a and b, and their duplicates are labeled as a’ and b’. Large and small circles show conserved sequence segments between orthologous chromosomes and between orthologous chromosomes and their paralogous chromosomes, respectively.