Pet dog
First explain the vocabulary in the article:
Merle Factor: Meteorite gene, also referred to as Merle
Tri Factor: 3 -color gene
BI Factor: 2 -color gene (black and white)
White Factor: White Gene (WF)
Blue Merle: meteorite (meteorite with macular on the face and legs)
BI Blue: 2 color meteorite (meteorites without macular on the face and legs)
Sable Merle: Carved meteorite (also known as red meteorite)
Double Merle: Double -portal
MerleFactor is different from Tri-Factor, BI-Factor, and WhiteFactor. The latter three can exist on any color dog, but Merle Factor only exists on Blue or Sable Merle, or Merle Factor leads to Blue (including it Blue Merle and BI-Blue) and Sablemerle. Therefore, no matter whether the three -color dog or black and white dog, whether it is the previous generation or not, does not carry Merle Factor itself, with it with cloud stone, Doublemerle cannot appear. If this three-color dog or black and white dog has a Merle Factor, it cannot show three colors or black and white colors, and can only be diluted into Blue Merle or Bi-Blue.
The meteorite is small, including three-color meteorite (with macular, that is, Blue Merle) and two-color cloud stones (no macular, that is, BI-Blue), because of the Merle Factor in the body, this body color shows. Merle Factor is a dilute genome, or diluted genome, which can dilute other colors, such as turning black ash, white gray, turning mink into light mink color, and so on. That is to say, the three -color cloud stone is actually a three -color dog faded by the Merl genome. The two -color cloud stone is actually a black and white dog faded by the Merr genome. If the two cloud stones (no matter what cloudstone) match. There are usually 25%of the descendants of the Murr genome, namely Doublemerle. Most of the white in this offspring is not a real white, but the gray that is further diluted, and this kind of kind, and this kind of Descendants are often disabled by Double's MerleFactors, deaf or blind, and even without eyes. All professional reproductives in the United States, unless they know and have rich experience in breeding, they will not adopt this breeding method. Double Merle is not allowed to participate in any competition, but there are indeed some excellent breeding dogs are Double Merle.
Corresponding to this, it is often mistaken for being a white genome on Xiaoxi's body. This is completely different from Merle. It is a white genome in the true sense. Genome. Any color of any color can be available or without this genome. Two dogs with only white genomes will also have a 25%probability of giving birth to the descendants of the white bodies, namely Color Headedwhite (CHW), which is very beautiful. However, AKC stipulates that this CHW cannot participate in the AKC or CKC competition, but can participate in many other competitions such as UKC, INT and so on.
There is a national organization WSSA, and the White Shetland SheepdogAssociation (White Shetland Sheep Dogs) has been fighting all the "dog rights" for CHW for many years. They believe that there are white dogs in the small hi that landed in the United States first, and the first award -winning Xiaoxi in the United States is also a white dog. AKC confuses them with Doublemerle to talk about the rules. There are many members of this organization, and the influence is increasing.