Fig. 1.

Canidae evolution and representative extant species. Relative to other Caniforms, the evolutionary relationship of the four major canid lineages, along with estimated split times (determined from [35] and [36]) is shown. Species with asterisks were included in CfERV-Fc1(a) discovery, and all canids here were used for in silico genotyping. The colored dots indicate the position of the clades illustrated by the corresponding image in the tree. Images are provided for the underlined species. See acknowledgements for all image credits