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

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...

In my  previous post , I said that I would be following up with a post about dun. It occurred to me, however, that it might be...

One of the genes that controls switching between black and red pigment in mammals is called Extension. The odd choice of name makes...

Fifteen years ago, many did not understand that each aspect of this horse’s color—bay, cream, and tobiano—involved a separate,...

When talking about a topic as complex as equine coat color, simplifying concepts is essential. This is particularly true when speaking to...

When cream dilutes clear bay, the guard hairs on the mane and tail can appear white I am still sorting through some of the old photos I...

Recent studies in other species show a connection between KIT and blue eyes A tobiano pony with partially blue and partially gold eyes...

The second release in the Equine Tapestry series – An Introduction to Colors and Patterns – is now available. The blog has been quiet for...

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...

Some close-up images of the reversed dapple pattern on a gold champagne Appaloosa mare, with comparisons to a sooty dapple palomino. I...

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...

It is possible to construct a rational system for naming and describing pinto patterns. Here is an attempt given what is currently known....

There are separate but equivalent mutations that can produce visually similar colors. This can complicate terminology and testing. As I...

Changes in the field of genetics – from classical genetics to molecular genetics – have made horse color more complex. As an artist, I...