Dilution “D” Locus – Blue and Lilac French Bulldogs
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Blue isn’t technically a color. It’s a dilution!
Blue Dilute is when the dog is “grey” or “silver” in color.
Blue is a dilution of other colors. The gene causes a mutation in cells that cause the color to improperly align, giving the “blue” diluted coat color.
- Dogs with D/D genotype are not expected to display dilute coat colors; they have no known dilution variants. They cannot produce dilute offspring or transmit any of the known dilution variants to their offspring.
- Dogs with D/d genotype are not expected to display dilute coat colors, but they are carriers of dilution variants. They will transmit the dilution variant they carry to 50% of their offspring. Matings between two carriers of dilute variants are expected to produce 25% puppies with dilute coat colors.
- Dogs with d/d genotype are expected to display dilute coat colors. They will transmit a dilution variant to all of their offspring.Because lilacs have the two copies of cocoa, their coats are often much lighter than a blue but sometimes it’s hard to tell the difference.
Appearance of Blue vs Lilac French Bulldogs
Shorty is lilac d/d co/co and Dahlia is blue d/d with one copy of coco. They both have light colored eyes with Shortys’ being a bit lighter.
Because of the 2 copies of coco Shorty also has an intense red eye glow.
A dog with only 1 copy of coco may not even have red eye glow.
I have seen varying levels of blues and lilacs. Lilacs I’ve thought are blue and blues I’ve thought are lilac.
You’ll find blue and lilac frenchies in a variety of coat variations such as fawn, sable, pied, brindle, trindle, and merle.
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