A friend recently shared a picture of this Clydesdale mare, Olde Tyme I. M. Nina ("Nina"). Her trainer, Jen Hemphill of Rolling Thunder...

This post gives an overview of this complex group of patterns and gives a brief explanation of how they have been named. Perhaps no other...

The convention the author of this blog follows is to use "sabino" (lowercase with no number) as the generic term for those patterns...

This is not a more specific term than sabino, but rather a generic term for the absence of pigment cells. In genetics, mice are used as a...

Rumors of the demise of this term are misleading. It's still widely used in the research community. The hunter mare pictured above...

The deadline for submitting samples for the W20 Project is coming up, so send them soon if you want your horse included! I wanted to post...

A project to raise funds and collect samples is underway to better understand the W20 variant in the W-series of patterns. I mentioned in...

One way of looking at the inclusion of sabino phenotypes in the W-series is to assume that it refers to "white spotting" in general,...

Tobiano, roan, sabino and dominant white are all mutations that involve the same gene - KIT - which is important for understanding how...

What are the differences between dominant whites and sabinos? In terms of phenotype, they do not look different. As I mentioned in the...