Figure 1
From: Increased rate of hair keratin gene loss in the cetacean lineage
Genomic organization of type I and type II keratins. Direction of the arrows indicate the direction of keratin genes in the genome. Protein names follow [8] for human keratins, and are numbered according to their genomic position. Connecting lines indicate keratins genes on the same chromosome/genomic scaffold. Black filled figures: intact genes; empty figures: pseudogenes; grey filled figures: non-keratin flanking genes; KAPs: keratin-associated proteins; shaded rectangle: hair-type keratins. NG: New Genes. The bold lines above some genes indicate those evolving in a concerted manner. Brackets indicate a sister relationship among genes, when clear established in the phylogenetic tree. Hair-type keratins are indicated by blue color.