Figure 1.
Reconstruction of the presumed ancestral chromosomes homologous to HSA7 (bottom) in placental mammals and their present status in living species (top). The two fragments of HSA7 observed in many species are indicated as 7a and 7b. Expected but not observed syntenies 7b-16p by Zoo-FISH are indicated by a question mark. (See Table 1 for the three-letter code meaning.)
