Brindling
sTANDARD BRINDLE
Brindle, in a genotype, is identified by 'kbr', it causes a striped pattern over red pigment. Canines carrying Dominant Black genes will not ever be visually affected by Brindling as they cannot express any A-Locus genes.
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The red colouration under brindling can range from almost white to almost black. The example accompanying this text is a standard Sable Brindle ('kbr'-'AyAy').
The classic dark stripes on a brindle can interact with dilution, progressive greying or merle, while the lighter stripes can be affected by the I-Locus.
The thickness of the stripes tends to vary, so a canine may look mostly black ('heavy brindle') or mostly red ('light brindle') as opposed to the middle ground in the example provided.
Canines that carry the 'Eg' or 'Eh' genes are affected differently, with brindling appearing mostly on black pigmented areas rather than red.
Masked Brindle
Masked Brindle occurs when a canine carrying the 'Em' gene, also carries the brindle 'kbr' gene.
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The mask is always the same colour as the striping.
Silver Brindle
Silver Brindle is where black stripes take on a silver colour. It only occurs on very light cream, or off-white base colours, never deep red.
The stripes turn silver as a result of the Progressive Greying gene ('GG'), so in order to be a true Silver Brindle; your character MUST be 'kbr-GG'.
Sometimes, canines with black stripes but a pale base coat can also be considered as Silver Brindle, this is because the pale colouration of the coat causes the black striping to appear lighter than it really is.
Tan point Brindle
Tan Point Brindle is a fairly simple concept; only the red sections of a canine are typically brindled, any areas of black are left solid. So in the instance of tan points, only the points become brindled.
To be considered a Tan Point Brindle, your character's genotype must include the brindle gene ('kbr') and at least one copy of the tan points gene ('at').
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Saddleback Brindle
Saddleback Brindle works in an identical fashion to Tan Point Brindle in that only red pigment may be brindled.
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At present, it is unknown what causes the saddleback gene, thus; we've assigned a gene for ease of character creation.
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To be a Saddleback Brindle, your character should carry the standard brindle gene ('kbr') and the saddbleback gene ('ates').
Merle Brindle
A brindled canine whose stripes are broken up into random patches of dilute are known as 'merle', meaning in a character genotype you will need the merle gene 'Mm' (or any variant of) as well as the brindle gene, 'kbr'.
Liver Brindle
Liver brindle (as opposed to black) occurs when a canine is 'bb' at the B Locus.
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In the same instance; they will have blue stripes if they are 'dd' on the D Locus, and isabella if both 'bb' and 'dd' are present.
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Dilution affects red pigment too, so you're more likely to end up with a lighter cream base as opposed to deep or rich red.
"Missing Stripes"
Missing Stripes are a genetic anomaly, it's where sections of the coat fail to produce the brindle patterning leaving behind very few stripes unrelated to light brindling. There is, as yet, no know cause as to why this happens.