I have blue heelers Male and female i have bred them 4 times now this is there 4th litter up till now we have only gotten Blue heelers ( they have only blue on both sides acording to the the people i got them from i have owned the male for 7 years now and the female for 6 ) they are retireing this year also from breding . It is important to note that the MITF insertion variant does not explain all white spotting patterns in dogs, and other variants are currently being researched. If the dog has any E or Em alleles, then it will not be yellow and we must look next at the K locus. In some breeds, where no brindle is present, this represents a complete analysis of the locus. Next are theB and D loci. While there are a variety of recessive b alleles (bc, bs, for example) that interact at the B locus to create the brown phenotype, for simplicity, we use bb as the genotype of a brown dog. The first locus to look at is the E locus. If the mate is another KBky black, 25% fawn may be expected. It will not expire. We do require a negative brucellosis test at least . Genes control the intensity of phaeomelanin, making the color stronger or weaker. Everything happening at the A locus in these dogs is hidden until the next generation. TheD locus (MLPH)will determine if eumelanin in the coat, nose, paw pads, and eyes is diluted to blue or isabella. Abbeville, SC 29620. For starters, let's do a little vocab from high school biology. Get in Touch. Dogs that are ee (recessive red) will not produce any dark hairs regardless of their genotype at the K, A, B, and D loci. Admiral is a parti merle. The gene associated with this locus is known as TYRP1. A Locus. By Admiral - 6836590361. It takes two recessives (bb) to dilute black pigment to brown. A full fluffy dog is the same as a classic french bulldog but carries 2 copies of a recessive long hair gene called L1 or L4. Affiliate of Mars Inc. 2023 | Copyright VCA Animal Hospitals all rights reserved. The KB variant of the CBD103 gene promotes eumelanin (black pigment) synthesis by blocking agouti gene expression at the A Locus which would otherwise inhibit MC1R production of eumelanin. There are 4 known alleles (variants) of agouti listed here with corresponding colour pattern in order of dominance: fawn/ sable (ay) yellow to red with some dorsal black tipped hairs, wild sable (aw) banded hairs of yellow and black as in seen in wolves and coyotes, black- and-tan (at) black dorsal hairs with tan hair, N/N -(no copies) dog does not carry piebald.
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