Blue Eyes Directory · blueeyesdirectory.com
Record mco-39, printed 30 August 2026. Every animal on this sheet has its own page and its own source at that address.

Mainefield's Oye Como Va

prefix Mainefield · Maine Coon · line: Pedigree ancestry, not a DBE line · tested, and the blue eye is attributable elsewhere · No variant and no line attributed · also in its ancestry: DBE-RE

How this cat is connected to the trait

Mainefield's Oye Como Va, MCO w
Justcoons Ha Shisch, MCO w 63, the dam of Mainefield's Oye Como Va
Olympia Della Tribu Del Deserto, MCO w, the dam of Justcoons Ha Shisch
JW Olmocabe's Alastor, MCO w 63, the sire of Olympia Della Tribu Del Deserto. 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.

Bar on top is the grade: Genotyped Wild type Line-traced Reported ♂ male ♀ female blue not blue no eye colour recorded a photograph is held ⚑ a numbered flag marks a record the sources disagree on

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 it would be carrying

DBE-RE. Exactly one variant below this cat is fixed by a DNA genotype or by a first-degree lineage genotype, through BelleAyr Pluto, BigBoots Belle Azure, BigBoots Big T, and the name travels back up the path the deduction came down. THIS NAMES THE VARIANT AND DOES NOT UPGRADE THE CARRIAGE: what changed is which test to order.

What the pedigree implies

ON THE PATH ABOVE AN OBLIGATE PAIR. Above Rociri Elvis, given on the pedigree as Rociri's Elvis

This is computed from the recorded parentage each time this site is built and is not typed into the register. It is a deduction from the trait being dominant, not a statement by any source, and it is not the same thing as the record's own status field. Only a laboratory settles it for an individual. The full list is on latent lines.

What is flagged on this tree

JW OLMOCABE'S ALASTOR. Trace. THE PUBLISHED GENOTYPING TRACES THE VARIANT ABOVE ROCIRI'S ELVIS, as a latent variant carried by white cats in which it could not be seen, to Justcoons Ha Shisch and then, after several generations, to JW Olmocabe's Alastor. THIS CAT IS WHITE, SO ITS EYE COLOUR CANNOT BE READ: dominant white acts through KIT and a variant through PAX3, and the eye alone does not say which. The two statements are not the same claim and both may hold: white would account for the eye, and the animal may still carry the variant unseen. The survey records both and does not decide which the eye colour shows
ELPHINSTONE IRISH COOLER. Sex. The field records male and the source's own wording reads female. The field wins on the page; the source has to be checked.
JUSTCOONS HA SHISCH. Trace. THE PUBLISHED GENOTYPING TRACES THE VARIANT ABOVE ROCIRI'S ELVIS, as a latent variant carried by white cats in which it could not be seen, to Justcoons Ha Shisch and then, after several generations, to JW Olmocabe's Alastor. THIS CAT IS WHITE, SO ITS EYE COLOUR CANNOT BE READ: dominant white acts through KIT and a variant through PAX3, and the eye alone does not say which. The two statements are not the same claim and both may hold: white would account for the eye, and the animal may still carry the variant unseen. The survey records both and does not decide which the eye colour shows

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: mco-39
Sex: male
Cattery prefix: Mainefield
Breed, as stated: Maine Coon
Line: Pedigree ancestry, not a DBE line
Eye status: blue-other-cause: tested, and the blue eye is attributable elsewhere
Role: sire
Relations named by the source: Mainefield's You Are My Inspiration x Justcoons Ha Shisch; SIRE OF ANVERSCOON GRENACHE, so paternal grandsire of Rociri's Elvis. The dam of that litter is Aislinn's Exciting Blue
Country: Austria, exported to Belgium
Year: 21 June 2011
EMS code: MCO w
The code read out: Maine Coon; white
The description held: MCO w, DOMINANT WHITE, NO EYE CODE. He is the generation between Justcoons Ha Shisch and AnversCoon Grenache, and the white does not pass beyond him: his son is MCO a
Evidence grade: Line-traced descent from a named founder is stated by the source

In the register

Parents: Mainefield's You Are My Inspiration, Justcoons Ha Shisch
Offspring recorded in this register; a cat may have others: AnversCoon Grenache

Blue Eyes Directory, blueeyesdirectory.com. Record mco-39. This sheet is a snapshot of a register that grows: check the address above for the current version, and for the sources behind every animal named on it.

Source

certified pedigree P15, supplied 14 August 2026: Rociri's Elvis, four complete generations, thirty ancestors of thirty possible, inbreeding 0.0 per cent

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.