Genotypes for masked dogs in most breeds are, therefore, as follows:Į mE - one mask allele, one normal extension alleleĮ me - one mask allele, one recessive red allele It is the top dominant of the E series, so that means a dog only needs one E m allele to have a mask, regardless of which The dominance hierarchy of the E locus isn't known for sure yet, and there may also be as-yet-undiscovered alleles, but currently it's thought to look something like this:Į m - masked (the mask appears over the top of the A locus pattern - see below)Į - "normal extension" (no effect on the dog all areas of the coat able to produce both pigment types, so pattern is then determined by A and K locus)Įumelaninistic masks (black/liver/blue/isabella on the muzzle and sometimes the ears) are caused by the E m allele. E helps to determine which areas of the coat can (and do) produce eumelanin (black/blue/liver/isabella) and which can (and do) produce phaeomelanin (red). "E" stands for "extension", and the E series is responsible for almost all non-agouti (A series) related eumelanin/phaeomelanin patterning in dogs.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |