Harlequin rabbit clarification

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I'm not quite sure what you were trying to say, but it certainly is possible to have a broken harlie (small "h," as in the pattern, not the breed). Harlies are not essentially brokens, broken is an entirely different gene. The allele that causes the harlequin pattern occurs in the "E" series. En, the broken gene, is at a totally separate locus. Just because a rabbit has two colors in its coat, doesn't make it a broken! Himi's aren't brokens, nor are Dutch; and they are always some other color plus white.

The broken gene creates a specific, easily recognisable pattern. There is some color on the ears, some around the eyes, some on the nose, some on the back. The paws are almost always white, there is almost always white on the chest and belly. Depending on how many pattern enhancing genes are involved, you may have a great pattern, or a poor one, but it is clearly the broken pattern.

The harlequin gene causes some areas in the coat to be flooded with eumelanin (the black pigment) and some areas wind up entirely lacking it. In breeds like the Rhinelander, the areas of black and orange are fairly small, not at all like the big bands of color we require of the Harlie. The harlequin gene is responsible for the black and orange appearing in separate areas of the hair, there are other genes that dictate just where and how big those areas are. The Rhinelander also has the broken gene, so showable Rhinelanders are all (genetically) broken harlequins (small "h"). In the areas where color appears on the Rhinelander, there are supposed to be both black and orange hairs visible. In fact, having too much of one color or the other in some areas (to the degree that that area is only one color) is a DQ. The rex breeds and some lop breeds don't recognise the solid harlequin, but they do recognise the broken harlequin, referring to it in their standards as the tricolor.

I raise and have raised ARBA Dutch, American Sable, and English Lops for years; I understand how the broken pattern works and keep detailed genetic records of my herd. I was attempting to keep it on the simplistic side of things; I was not delving into genetics but rather ARBA standards and color chart. In accordance to the ARBA a broken triocolor is not considered a variant of the harlie, as no proper banding is present yet they carry the ej allele. Genetically they carry both the Enen (broken allele with EnEn being a Charlie and enen being a solid) as well as ej being the harlequin allele. However they are not classified as “broken harlequins” with the ARBA. The tricolor being a completely different set of markings lacking the proper banding and split that is seen in a true harlequin. Hence there are no broken Harlequins, simply broken tricolors; genetically parallel, yet classified as two separate entities.

My project for the near future is to get the Tricolored English Lop started. Hence all the aggravation about the harlequin terms being thrown around. As the modern tricolor would be laughed at by true harlie breeders.
 
I have bred Harlequins for upward of 20 years, and tricolor Mini Rex for almost as long. Did you know there once was a Harlequin Dutch?

Just because a color isn't recognised in ARBA standards, doesn't mean it doesn't exist. As a breeder with a great deal of experience, I can tell you that there are many, many, many pedigreed Harlequins that don't have bands, or the required split and reverse. They are a tear-your-hair-out minority of the rabbits born in a Harlequin breeders' herd.

I don't want to risk Charlies, so I don't breed broken to broken. This means that I must breed a tricolor Mini Rex (broken tricolor is redundant) to a color that isn't recognised by the ARBA, namely a harlequin Mini Rex. Curiously, the solid harlie MR often do display at least part of the harlequin pattern; my tri's have all had their black and orange in smaller patches, more like the pattern (or lack of) displayed in the Rhinelanders. If the ARBA standards committee would accept black and orange in any old arrangement, there could be harlequins and broken harlequins in many breeds. But, since there seems to be some interaction going on with the broken gene or its friends that inhibits the expression of the classic Harlequin pattern, a broken harlequin that displays the pattern seems nearly impossible to achieve. The standards committee insists that to call a rabbit a harlequin, it must look like the show-worthy Harlequins, even if they are few and far between. Since what is called a tricolor doesn't have to display the pattern it is much easier to achieve, but it is still genetically a broken harlequin.

I understand that the Harlequin Dutch was required to display both the classic harlequin pattern and the Dutch pattern. Knowing how hard it is to get either of those patterns correctly expressed by themselves, I imagine more than a few breeders may have gone stark raving bonkers trying to get them both on the same rabbit!
 
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