KaleidoChroma Queen Esther
Toy · Female
Red-spectrum Poodle (Irish / tuxedo-type white)
Predicted from tested genotype; bracketed description observed by PGL
Genetics
Report checked by PGLTested via LABOKLIN. Only the loci listed above were tested; untested loci are unknown, not clear. Shade within the red spectrum is polygenic and is not predicted from the tested loci. Record each ee parent’s observed shade to see the parents’ range here.
From the report
Littermates are SS, true tuxedos and one black tri. Health panel clear, no carrier.
Why this dog is worth study
By eye, Queen Esther is a parti: a mostly white Toy puppy with apricot patches. Her LABOKLIN report says two things the photo never could.
First, she is S/S at the S locus, the result that is supposed to mean no piebald white at all. That is not a lab error. The S-locus test reads one MITF piebald variant, and piebald is not the only route to white in Poodles. Her litter is the clue: littermates who are also S/S show true tuxedo markings, so Irish spotting is clearly running in this family. Esther's much larger white area is consistent with her carrying two copies of the Irish-spotting factor together with whitehead, the pattern that pushes white up over the head. Neither has a DNA test yet, so this is a reasoned reading of the litter, not a lab result, and it is exactly why a reviewed photograph belongs in this library. See the Whitehead and Irish spotting article in the Genetics Guide for the full question.
Second, underneath that red-spectrum coat she carries a dominant black allele (KB/ky) and two copies of the phantom haplotype (BB1/BB1), and neither one shows. She is e1/e1 at the E locus, two recessive-red alleles, which switch off black and brown pigment in the coat entirely. Everything the K and A loci would normally paint is still there in her DNA, just with nothing to paint on. Paired with a mate that contributes an E allele, some of her puppies could show exactly what she hides: solid black from her KB, or black-and-tan phantom from her BB1 haplotypes.
The one thing to remember: a color panel is a list of what the dog carries, not what it shows. Read the E locus first, because e/e (or e1/e1) decides whether any of the rest is visible. And an S/S result rules out piebald, not white.
Submitted by KaleidoChroma. Genotype verified by PGL against the original LABOKLIN report.
