This post first appeared on November 8, 2011
I mentioned in a previous post that both Sabino1 and Tobiano were really old genes. The paper detailing that study was among the most fascinating articles on horse color that I had read in recent years. Now there is a new study out that shows that Leopard Complex, the gene responsible for setting up the various appaloosa patterns, was present far earlier than anyone expected.
The full article can be read here.
As more and more tests become available for the different colors, it will be interesting to learn just how old some of them are.