Fig. 3

Collinearity analysis of the pericentric inversions observed between blue catfish (Ictalurus furcatus) and channel catfish (I. punctatus). Collinearity syntenic analysis of the three pericentric inversions. A Phylogenetic dendrogram of the species involved in the analysis. Asian species include Southern catfish (Silurus meridionalis), Asian redtail catfish (Mehibagrus wyckioides), Yellow catfish (Pelteobagrus fulvidraco), and striped catfish (Pangasianodon hypophthalmus). North American species include black bullhead catfish (Ameiurus melas), blue catfish (Ictalurus furcatus), and channel catfish (I. punctatus). Zebrafish (Danio rerio) and Mexican tetra (Astyanax mexicanus) are included as outgroups. Divergence times are in million years ago. B–D Collinearity analyses of the inversions in chromosome 6 (B), chromosome 11 (C), and chromosome 24 (D)