Fig. 1
From: MHC class I evolution; from Northern pike to salmonids
Phylogeny of Salmonidae and Northern pike. Phylogenetic relationship between included species. Dating of individual events are based on data from [48, 49]. Salmo and Oncorhynchus species are shown using a blue and red box respectively. The unique salmonid whole genome duplication event that occurred approximately 94 million years ago (MYA) [5] is shown using a red arrow