See:
Nadeau et al. Mammalian Genome 3: 480-536.
Comparative map for mice and humans.
O'Brien et al. Nature Genetics 3:103-112
Anchored reference loci for comparative genome mapping in mammals.
As well as any edition of "Genetic Maps" (edited by S.J. O'Brien) for
current info on comparing the chromsomes of organisms.
Keith Robison
Harvard University
Department of Cellular and Developmental Biology
Department of Genetics / HHMI
krobison at nucleus.harvard.edu