Cyrridwen Pasha

prefix Cyrridwen · Exotic Shorthair · line: Marusya · the source records no eye colour · Variant known, this cat untested

Genealogy trace, one printable page carrying the proposed code

How this cat is connected to the trait

No recorded parent link joins this cat to a founder or to a tested animal. What the record rests on instead is the line recorded on it, Marusya, which is a source's attribution and not a descent this register can walk; and no recorded parent at all, which is a gap in the sources and not a statement that the cat had none.

No parent is recorded for this cat in the register, so no genealogy can be drawn. That is a gap in the sources, not a statement that the cat had none. Any offspring the register holds are listed below.

What the prefix suggests

DBE-Maru, on a prefix match only. No pedigree is held for this cat and no variant is adopted for it. Other cats of the Cyrridwen prefix in this register carry DBE-Maru, on evidence graded reported at best. That is a prefix match and not an attribution: a prefix names a cattery, and a cattery can hold more than one population. It is recorded so that this cat appears on a list worth testing, and only a laboratory or a pedigree takes it off.

The record

Register id

mar-36

Sex

male

Cattery prefix

Cyrridwen

Breed, as stated

Exotic Shorthair

Line

Marusya

Eye status

unknown: the source records no eye colour

Certificate wording

brown classic tabby and white

Role

mate

Relations named by the source

sire of Cyrridwen Mosaic; the Pasha of the Cyrridwen chart

The description held

The variant of this line is DBE-Maru and two copies of it are not survivable on the evidence held. The allele is PAX3 XM_019838731.3:c.784C>T, a nonsense variant in the fifth exon that truncates the protein at p.(Arg262*) and removes 46 per cent of it. All 14 dominant blue eyed cats of the line tested are heterozygous. One homozygote is on record and it was an abnormal kitten, Dead at birth, out of two dominant blue eyed parents, genotyped T/T. It is recorded against every animal of the line because a breeder looks up an animal and not a line. What it means in practice: mating two carriers together is expected to lose the quarter of the litter that inherits two copies, and because those kittens do not survive to be counted, a breeder doing it may see only small litters and conclude nothing is wrong. It is a different and worse harm from the compound heterozygote this register documents elsewhere, which is white and deaf and which lives. No hearing data exists for any cat of this line, which the authors state explicitly, so nothing is said here about deafness in it either way. Source: Abitbol M, Eisele T and Lipovenko E, 'Additional PAX3 Variants for Dominant Blue Eyes in Cats', Animal Genetics 2026;57:e70199. S_PAX3_2026_236

Evidence grade

Line-traced descent from a named founder is stated by the source

In the register

• Offspring recorded in this register; a cat may have others: Cyrridwen Mosaic

This directory is a working aid compiled from published charts, registry documents and breeder statements. It is not a register and it has no standing of any kind. The grade attaches to the animal, not to the line: a cat whose ancestor was genotyped is line-traced, not genotyped.