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What you CAN'T get (see below for white): |
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| If BOTH parents are: | you can't get: | |
| black |
K(K/kbr/k) |
fawns & brindles in the same litter because each parent can only carry 1 other gene at the K locus they can only produce one other color besides black. |
| blue (solid, fawn, or brindle) |
dd x dd |
black pigment or coat because there is no dominant D gene 2 blues cannot produce black pigment or coat color |
| brindle |
ayaykbr(kbr/k) |
solid blacks or blues because there is no dominant K gene 2 brindles cannot produce solid blacks or blues |
| fawn |
ayayEm(Em/E/e)kk |
brindle because there is no brindle (kbr) gene 2 fawns cannot produce brindles |
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ayayEm(Em/E/e)kk |
solid black or solid blue (*see Note below) because there is no dominant K gene 2 fawns cannot produce solid blacks or blues |
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| If parents are: | you can't get: | |
| brindle x fawn |
ayaykbr(kbr/k) |
solid blacks or blues because there is no dominant K gene a fawn and brindle cannot produce solid blacks or blues |
| *Note: EXCEPT if one parent has absolutely NO black hairs then that dog might be a fawn produced by the double "ee" recessive and such a fawn CAN produce a solid black or blue (if the dog is a genetic black or blue) when bred to a normal fawn | ||
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NOTE: in white markings the action of plus (+) and minus (-) modifiers cause some overlap of visible markings, so take these as generalizations - not absolutes! |
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| If BOTH parents are: | you can't get: | |
| solid |
S(si /sp/sw) |
solids & Irish marked & parti-color & extreme white because there are 4 genes at the S locus, these 2 parents cannot produce all 4 patterns |
| Irish marked |
si (si /sp/sw) |
solids, or Irish marked & parti-color & extreme white because there are 2 other genes recessive to Irish marked, 2 parents cannot produce all 3 patterns. Solids are excluded by the absence of the dominant Solid gene |
| Parti-color |
sp(sp/sw) |
solids or Irish marked Solids and Irish marked are excluded by the absence of the genes for these patterns |
| Extreme White |
swsw |
solids, or Irish marked, or parti-color Solids and both Irish marked and parti-color are excluded by the absence of the genes for these patterns |
| If parents are: | you can't get: | |
| solid x Irish marked |
S(si /sp/sw) |
Irish marked & parti-color & extreme white because there are 3 white-pattern genes at the S locus, these 2 parents cannot produce all 3 patterns in one litter |
| solid x parti-color |
S(si /sp/sw) |
Irish marked & parti-color & extreme white Because there are 3 other genes at this locus, these 2 parents cannot produce all 3 patterns in one litter |
| solid x extreme white |
S(si /sp/sw) |
Irish marked & parti-color & extreme white because there are 3 other genes at this locus these 2 parents cannot produce all 3 patterns in one litter |
| Irish marked x parti-color |
si (si /sp/sw) |
solids, or parti-color & extreme white solids are excluded by the absence of the solid gene. Because there are 3 other genes at this locus, these 2 parents cannot produce all 3 patterns in one litter |
| Irish marked x extreme white |
si (si /sp/sw) |
solids, or parti-color & extreme white solids are excluded by the absence of the solid gene. Because there are 3 other genes at this locus, these 2 parents cannot produce all 3 patterns in one litter |
| parti-color x extreme white |
sp(sp/sw) |
solids or Irish marked solids are excluded by the absence of the solid gene. Irish marked is excluded by the absence of the gene for this pattern. |
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