![]() It's not known why this happens, but it could be that E-locus black (such as masks) just isn't affected in the same way by greying as K- or A-locus black. Their main coat may turn to silver while leaving the hair on their muzzle solid black. Kerry Blues are a striking example of this. One last interesting thing to note about greying is that while it affects dogs with tan markings (saddles, traditional tan etc) it does not always affect masks. Simply carry both greying and phaeomelanin dilution. Red is generally lightened by the intensity ( I) series, and some breeds However, as the rich tan on some Yorkshire Terriers proves, there is not necessarily a strong connection. That the lightening of the two types of pigment is connected. Sometimes breeds which have the greying gene also come in shades of cream, which suggests ![]() Greying doesn't affect phaeomelanin (red) to the same extent. Gene may have greying as well, but it's rare for the two genes to occur in the same breed. Nose or eye colour, it is progressive (so a dog with greying is born solid black or liver and becomes lighter as it gets older), and it doesn't alwaysĪffect the whole of the coat to the same extent (the shade of grey in different parts may vary, and some parts may even remain black). However, unlike the dilution gene it doesn't actually affect the The greying gene, like dilution, affects eumelanin (black and liver). Greying is expressed on long, curly and wire-haired coats only, so a short-haired dog may have the gene but show no sign of it. GG will generally have a stronger effect on the coat than Gg. It's thought to be an incomplete dominant, so G is greying and g is non-greying, and in order forĪ dog to express greying it only needs to have one copy of G (so its genotype can be Gg or GG).
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |