![]() Some dogs are light brindle in color - mostly red with darker stripes. It can come in different shades and tones, and the pattern shapes vary. Not all brindle patterning is exactly the same. And not all brindle patterns appear in the same way in different dog breeds. ![]() To make matters even more complicated, not all dogs have a striped brindle coat. Sometimes called a trindle or tricolored coats. Plus, we know that all brindle dogs can still have white markings on their coat. Researchers have discovered which gene determines color intensity. And it’s still unclear what controls the various aspects of brindle, such as stripe width. We don’t yet know how to genetically test for the brindle coloring. So, it can be hard to predict what dogs with brindle coats will look like until they grow into their fur. Genes can act differently in different dog breeds. A particular combination of Agouti genes can even give rise to tricolor dogs! And different Agouti combinations determine how the brindle shows up in dogs. It switches on and off the red and black pigments in dogs. The Agouti gene is one of the most important genes involved in coloration. They also switch other pattern and color genes on and off too! So to be brindle requires a brindle gene, and a specific type of Agouti gene.īut, even with this combination present, the brindle will be switched off if another gene known as ‘dominant black’ is present! The Agouti Gene Dog coat color genes don’t just switch specific colors or patterns on and off individually. ![]()
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