Tricolor (*/tri)

Spl/+ c-recessives (Splashed), or
Va (varitint waddler), or
Ay/at U/* s/s (Sable with recessive white spotting), or
pun s/s (pink-eye unstable), or
cm/cm s/s or cm/cch s/s (chinchilla mottled), or
pm1/2/p s/s (pink-eye mottled)

"A tricolor mouse is to have three contrasting patches of colour on the back and sides. Patches of colour on the undersides and belly to be adjudged an added attraction. Brindling of patches to be adjudged a fault."

Breeding information below the pictures.

Avicii, sh tricolor buck (splashed).
pic: Kaisu Airaksinen.

(Click the pic for a larger image.)

A Swedish sh tricolor.
pic: Anniina Tuura.

Ay/* + s/s tricolor-in-making, pic: Anniina Tuura.

Pigment areas are differentiating somewhat.

(Click the pic for a larger image.)

Possibly cm/cm or cm/cch + s/s tricolor
pic: Hannele R.

(Click the pic for a larger image.)

Note: This article is old and waiting to be rewritten.

Quick Look

Tricolour used to be an extremely rare variation, even in the country of origin, UK. Then along came the Splashed gene and things changed.

The methods of breeding tricolours are many, most of them difficult and/or depending on very hard to get genes. There is one gene called 'variatint waddler'. This gene produces uneven dilution of coat colour, causing black /grey/ white or brown /beige /white colouring. According to standard the stripes caused by the gene are considered a fault. Major problem with using variatint waddlers are their health. Waddlers are deaf due to abnormalities in the inner ear and they walk in circles.

Another, healthier but not really easier method, is sable Ay/at U combined with the recessive spotting s/s. The two colours of a sable (red and very dark brown) has the tendency of "clumping" in the presence of s/s.

Pink-eye unstable gene pun gives mice with undiluted and pink-eye diluted spots. However, this gene is unstable, as the name implies, reverting often to wild type.

In homozygous form (cm/cm) or with chinchilla gene (cm/cch) chinchilla mottled gives mice with patches of chinchilla-diluted colour and colour resembling that of a cch/c mouse. This gene is easier to work with than those above and with s/s can give nice Tricolors.

Pink-eye mottled genes pm1 and pm2 (they have identical effects) give non-diluted and pink-eyed diliuted hais intermingled, when heterozygous with p.