Krystoff Blue Chamina

Siberian · line: Malvina / Barnaul · both eyes blue, put down to a DBE variant or its line · Published line, tested against the known variants and carrying none

Genealogy trace, one printable page carrying the proposed code

Under the variant field this directory proposes, this cat would read DBE 161 x5p. A carrier of a variant with no published allele, on a line this proposal gives a suffix to. The proposal is set out in full here, and no registry issues this field today: it is computed from the record at each build and is not part of any registration.

How this cat is connected to the trait

1. Krystoff Blue Chamina, SIB ny 09 23 61
2. Krystal Blue Slavicat, SIB f 03 24 61, the dam of Krystoff Blue Chamina
3. Slavicat X Tra Special, SIB d 03 24 61, the parent of Krystal Blue Slavicat
4. Malvina, SIB f 03 61, the dam of Slavicat X Tra Special. a founder of this survey; no variant has ever been identified in this line

That is 3 recorded parent links, and the animal at the end of it has never been tested, so the connection is a descent and not a result. Every step is a parent recorded in this register from a document; none of them is an assumption. The full genealogy is drawn below, and the sources for each animal are on its own page.

Save this cat as a PDF the connection, the genealogy and the source on one A4 landscape sheet, carrying this directory's name and address

What is flagged on this tree

1. MALVINA. The breeder of the Meowrigi cattery gives her own account of this animal, relayed to this survey on 2 September 2026: She is the foundation of that line and she was found in Kazakhstan. The register holds her as found in Russia, at Barnaul in the Altai region, in 2015, and the researcher's 2026 presentation slide also calls this a line from Russia. The two countries are not reconciled here and both readings are kept: a found cat has no paperwork to settle it, and the Altai region borders Kazakhstan. Separately, the breed is open. This register holds her as a Siberian with a Siberian code, while the researcher's slide describes the line as a domestic shorthair line introduced into the Siberian breed, which would make the Siberian what she was bred into rather than what she was. That is the same shape of error corrected on the Marusya founder and it is recorded here rather than acted on. How the compiler reads the country disagreement: that the sources are probably not disagreeing about geography at all, but using Russia loosely for the whole post-Soviet region, so that a cat found on the Kazakh side of the Altai is written down as Russian. That reading is recorded and not adopted, and it is worth carrying beyond this animal, because several of this register's founding lines come from exactly that border country. S_RANO_228 she was mated to the Aktau founder and this register holds none of the kittens. The Meowrigi chart records two matings of Caspian Black Hole, the Aktau founder, to this animal, and the compiler was told on 2 September 2026 that the breeder who found her holds the offspring. Such a kitten would stand below the Barnaul founder on the dam's side and the Aktau founder on the sire's, which is the only mating of two separate dominant blue eye founders this survey has found. Neither determinant is identified and no test exists for either, so nothing is claimed about what those animals carry. The sire was deaf. Their pedigrees are the single most valuable thing outstanding on this line. The chain below her is repaired, 2 SEPTEMBER 2026. Her blue-eyed boy is now entered as a record of his own, where this register had wrongly put Raimonda Slavicat, and the descent to Velvet now runs through four names as the breeder describes it rather than three. S_BARNAUL_231 the breeder's own account of the find, 2 September 2026, answers every open question on this record. She is not a pedigree Siberian. She was found, and the breeder registered her as a Siberian because she looks like one, at a cattery that breeds Siberians. That is a registration made on appearance and not a descent, and it is why this survey's own records and Professor Abitbol's 2026 slide, which calls the line a domestic shorthair line introduced into the Siberian breed, were never really in conflict. The breed field is corrected to domestic shorthair and the Siberian registration is recorded here as what it is. She was already pregnant when she was found, by a tom cat, and that disposes of the date difficulty this register raised: a cat found in 2015 can have a kitten born early in 2015 if she arrived carrying it, so no earlier find and no impossibility need be supposed. The Tom is the black and white domestic shorthair this register already holds, unnamed, and he was never in anyone's hands. There were further kittens of that litter and this register holds only one of them, the blue-eyed boy who was crossed with Raimonda; the rest are a documented gap. S_BARNAUL_231 | seven DBE cats of this line were genotyped and the line is excluded from both new variants. Abitbol M, Eisele T and Lipovenko E, 'Additional PAX3 Variants for Dominant Blue Eyes in Cats', Animal Genetics 2026;57:e70199, Table 1 gives 'Malvina, 7' with four tested for DBE-NAD and all four wild-type, and four tested for DBE-MARU and all four C/C, which is wild-type. This is the first laboratory result this register has held for the Barnaul line and it is an exclusion, not an identification. The determinant of this line remains unpublished. S_PAX3_2026_235
2. Slavicat x Tra Special. Variant taken over high white, on a ruling and not on a test. This cat carries dominant white, a van, harlequin or bicolour figure, or a point figure, any of which leaves enough unpigmented iris to account for a blue eye without PAX3. It also carries a variant or stands in a DBE line, and the holder ruled on 31 August 2026 that the variant is taken as the cause in that situation. The alternative is not closed and only a genotype closes it. A photograph is better evidence of extent than a code, so where one has been read the phenotype note should be preferred to this flag. Recorded so the ruling is visible on every animal it touches and can be reversed as a set. S_VARIANT_OVER_WHITE
3. Slavicat x Tra Special. Eye and coat, a determination and not a query. This cat is blue-eyed in both eyes, carries a bicolour or locket white code, is not dominant white and is not colourpointed. The classic white spotting gene covers an eye where the white happens to fall, which gives an odd eye and not two blue ones, so the coat does not account for this and a dominant blue eye is present in the line. It is not the KIT odd-eye case. Its registry has entered no dominant eye code on it. Which variant is not deducible from a coat code and none is adopted.
4. Krystal blue Slavicat. Variant taken over high white, on a ruling and not on a test. This cat carries dominant white, a van, harlequin or bicolour figure, or a point figure, any of which leaves enough unpigmented iris to account for a blue eye without PAX3. It also carries a variant or stands in a DBE line, and the holder ruled on 31 August 2026 that the variant is taken as the cause in that situation. The alternative is not closed and only a genotype closes it. A photograph is better evidence of extent than a code, so where one has been read the phenotype note should be preferred to this flag. Recorded so the ruling is visible on every animal it touches and can be reversed as a set. S_VARIANT_OVER_WHITE
5. Krystal blue Slavicat. Eye and coat, a determination and not a query. This cat is blue-eyed in both eyes, carries a bicolour or locket white code, is not dominant white and is not colourpointed. The classic white spotting gene covers an eye where the white happens to fall, which gives an odd eye and not two blue ones, so the coat does not account for this and a dominant blue eye is present in the line. It is not the KIT odd-eye case. Its registry has entered no dominant eye code on it. Which variant is not deducible from a coat code and none is adopted.
6. Krystoff blue Chamina. Eye and coat, a determination and not a query. This cat is blue-eyed in both eyes, carries a bicolour or locket white code, is not dominant white and is not colourpointed. The classic white spotting gene covers an eye where the white happens to fall, which gives an odd eye and not two blue ones, so the coat does not account for this and a dominant blue eye is present in the line. It is not the KIT odd-eye case. Its registry has entered no dominant eye code on it. Which variant is not deducible from a coat code and none is adopted.

A flag is not an error. It marks a place where two sources say different things, or where an attribution cannot be made on the evidence held.

The record

Register id

bar-16

Sex

not stated by the source

Breed, as stated

Siberian

Line

Malvina / Barnaul

Eye status

blue-variant: both eyes blue, put down to a DBE variant or its line

Role

ancestor

Relations named by the source

out of Klondike Zaimka and Krystal Blue Slavicat

Year

27 April 2021

EMS code

SIB ny 09 23 61

The code read out

Siberian; black golden; unspecified amount of white, mackerel tabby; blue eyes

The description held

entered from the Barnaul chart. Homozygosity in this line is stated to be lethal. Professor Marie abitbol, who identified DBE-ALT and DBE-CEL, states in her 2026 World Cat Federation presentation, on the slide headed 'Malvina line', that this is a dominant blue eye line from Russia, that it was introduced into the Siberian breed, that homozygosity is lethal, that there is no data on deafness, and that the search for the variant is ongoing. This is the researcher's statement and not this survey's finding. It is recorded against every animal of the line because a breeder looks up an animal and not a line. S_LETHAL_206

Note

The code and the description do not use the same words for this coat. Both are recorded and neither is reconciled to the other.

Evidence grade

Reported asserted, with neither a test nor a traced descent

In the register

• Parents: Klondike Zaimka, Krystal Blue Slavicat
• Offspring recorded in this register; a cat may have others: Dalia Chamina

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.