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Molecularbiology The Receptor called MC1R (see graphic) is causing the pigment type switching. If the receptor signals, dark eumelanin is produced. If there is no signal, light pheomelanin is produced. Normally the ubiquitous MSH (blue square in the graphic, melanocyte stimulating hormone) is...

I dont think its japanese, i doubt the self genes. I have not much experience with steel beside some nearly black ESe rabbits, but my understanding of molecular biology prevents me from thinking an aa rabbit can show any sign of steel because without agouti signaling protein there should not be...

Nothing surprising with eJ. Its not really an rezessive mutation. Its in fact a dominant mutation similar to ES. Similar to tricolor cats, which due to x inactivation have the yellow gene in some cells and the black one in the other ones, eJ causes ES like receptors in the dark cells whereas...

Are you very very sure about this? Because as far as i know, if there is no agouti gene to cause agouti bands, the steel gene could nothing do to let them appear. It only narrows the agouti band in several degrees up to its disappearement. The ones with single agouti hairs i once had have been...

you are welcome to add images of this rabbit also ;-)

could be a smutty frosty one too, atBchDe. Unfortunately there is no image yet on nonextension, tan/otter/marten - atche - Rabbitcolors

I only have one in blue on rabbitcolors. Please, if someone own such a rabbit or has the right to use images, could you add them? Rabbitcolors - edit entry - Rabbitcolors Up to now i wasn't able to find a proper image to replace the blue martenized himi in this explanation about the c-series...

if you look for images by genecode, look here: Home - Rabbitcolors Maybe reed the help to find out how to use the site.

In europe genecodes silver is a dominant gene. have you looked at single hairs or by blowing into the fur only? Standard descriptions often are not in sync with realities or genetic possibilities. If white hairs are very thin they dont look white, because the dark of the other hairs shine...

They can have very few dark hairs, Robinson (or someone he cites) tells about a yellow eJ rabbit. After very systematic investigation they found very few dark hairs in one place.

The brindle in dogs is different to japanese, its caused by a ligand produced in the skin, not a receptor in migrating melanocytes, therefore these patters are different.

the light part of steel hairs is the narrowed middle band, not the tip. Regarding EeJ rabbits, the japanese can best be seen in young kits/on the belly/on ears. The japanese gene is causing an extension receptor similar to steel. It causes black or steel patches and is dominant to all...

Thats the problem with color names. Steel rabbits are NOT silver/gold tipped! The light color is the narrow middle band on the hair shaft, not the tip. And silvered rabbits are not tipped either. They have entirely white hairs. Its like white hairs in older humans, the hair follicles have no...

Not a book and not really standard color names, but rabbit images searchable by there genetics and with genetic based generic color names: http://rabbitcolors.info/int/en/index.html From each colorgroup/category you can choose one. The categories always resemble one or several genes (normally...

if you dont want to breed torts with very few side markings maybe you should look into cavia ;-) They hav an mutation like the himalaya, but on top of full colored animals rather then on white ones. https://www.zwarteneusjes.nl/california-cavia-s

Pluck some hairs and examine them on an unicolored background. If your rabbit have completely white hairs its not steel. Btw, on steel the white/gold is in fact not the tip, but the narrow middle agouti band.

Rabbits with strange color distributions on heterocygote colors, if the dominant gene get lost in one cell, on proliferation it developes one or more patches of the recessive color. the steel gene in combination with other Extension alleles beside E may cause black color.. I am not sure if...

Thats an broken magpie: Yes, its the difference between brindled/striped and dalmatian pointed. The english spotting gene changes the migrating of color cells, seems like the dark ones are some quicker to get in the skin and proliferate there around the first one (pigment cells only goes to...

look here: Harlequinized rabbits - EeJ - Rabbitcolors

You can look for images here (search for harlekin) http://rabbitcolors.info/int/en/colornames/1.html?l=en or here (pick te genes you are interested in out of the bottom list ) http://rabbitcolors.info/int/en/groups/eJ.html