Research overview: chromosome evolution and comparative cytogenetics of cats

The cat family is notable for an unusually conserved karyotype, with most species sharing a similar chromosome number and arrangement that has changed little over the family's history. This overview surveys comparative cytogenetic studies showing how the feline genome preserves ancestral mammalian chromosome blocks, making cats a useful reference for reconstructing the genome organization of early carnivores and other mammals. It discusses the few rearrangements that distinguish certain lineages, the integration of cytogenetic maps with sequence assemblies, and how chromosome-level conservation in cats contrasts with the more reshuffled genomes of some other mammalian groups, aiding the inference of ancestral genome structure.