Fig. 1

Relationship of Felidae to other mammalian species. a Orthologous gene clusters in Felidae species. Orthologous gene clusters were constructed using 18 mammalian genomes. Only Felidae species gene clusters are displayed in this figure. b Gene expansion or contraction in mammalian species. Branch numbers indicate the number of gene families that have expanded (blue) and contracted (red) after the split from the common ancestor. Colors of circles represent diet groups (light red: carnivore, light blue: omnivore, light green: herbivore). The time lines indicate divergence times among the species