not bi-eyed, or two of the same color eyes??

Is bi-eyed an official technical term?

Would two of the same be uni-eyed, homo-eyed?? I hope.....really hope it's not just "normal" !

Siberians can have what's known as bi-eye or parti-eye. But for eyes of the same color I have always known it to be dual ___color____ eyes....so in example Denali would be dual brown eyes, Enya dual amber eyes. Kenna is bi-parti-eyed.

Denali


Enya


Kenna - it's not easy to see in the pic but her right eye is blue with a brown spot on the top under the lid. Her left eye is brown with a blue spot in the inner corner.

Got it, thanks Lani. So dual-eyed (plus color) would be the closest to a technical term.

That's what I was taught anyway

It's funny how easily we name exceptions or "not normal" things without ever bothering to name the common or "normal" things in the same way

the technical term for "bi-eyed", meaning, the scientific term is called heterochromia.

Great, rendering homochromia??

So heterochromia, while accepted as a breed standard, surely is a genetic abnormality, yes, if normal is considered simply as rate of prevalence??

seattlesibe wrote:

Great, rendering homochromia??

monochromia/homochromia both mean, "having one color".

If your pup had two pure blue eyes, they would be considered monochromatic, or homochromatic.

As far as Biology and genetics are concerned, I am not sure if it is possible to have a breeding pair that could guarantee the certainty of heterochromatic, or monochromatic eyes. I am not sure if the genes for eye color work the same way as the genes for coat color. Not a biologist

Heterochromia is actually a lack or excess of pigment that can appear in the iris of the eye, though pigment isn't an issue in many of the dogs that it appears in so I'm not sold on the wiki answer. As you can see in my bi-parti-eyed girl she does not have a pigment issue in the least. In Siberians it is bi or parti eyed.

seattlesibe wrote:

So heterochromia, while accepted as a breed standard, surely is a genetic abnormality, yes, if normal is considered simply as rate of prevalence??

Its been a while since I did any research into this so anybody who has more current info feel free to correct me if I'm wrong. What I remember finding in my research back then, is that eye color in Siberians is actually inherited in each eye independently, unlike in human eyes were eye color is controlled by a single group of genes. This makes trying to determine or predict eye color even more complicated in Siberians than it would be in trying to determine or predict in most other organisms. It is not considered to be a genetic abnormality however, or at least it didn't used to be.

It is not considered a genetic abnormality which is why, in the breed we do not refer to it at Heterochromia.

Dichromatic?

HuskyMom09 wrote:

It is not considered a genetic abnormality which is why, in the breed we do not refer to it at Heterochromia.

But if that's what the actual condition is called, why not?

Is it just because it has been selected for, accepted, and normalized?

MyKeeonah wrote:

seattlesibe wrote:

Great, rendering homochromia??

monochromia/homochromia both mean, "having one color".

If your pup had two pure blue eyes, they would be considered monochromatic, or homochromatic.

As far as Biology and genetics are concerned, I am not sure if it is possible to have a breeding pair that could guarantee the certainty of heterochromatic, or monochromatic eyes. I am not sure if the genes for eye color work the same way as the genes for coat color. Not a biologist

Probably due to dominance and recessiveness in the genes manifesting themselves in the actual organism, I'm guessing.

If it's recessive an organism can be a carrier but not have it active or manifest. So theoretically two monochromatic dogs could still produce a heterochromatic puppy.

Also not a biologist.

As it was stated the genetic code that makes up the eye color in Siberians is chosen individually instead of in pairs as in humans. For humans to have dual color eyes it is a genetic mutation as a single gene set of genes is altered. Since Siberians are individual genes it is not a mutation that happens it is a genetic selection nor is it a lack of pigment that causes the anomaly. There for the 'condition' is called bi-eyes in the case of two differing eye colors. Since both blue and brown eyes are equally dominant in the breed (unlike in humans where blue is a recessive gene) it is just as easy for a blue gene to be selected as it is a brown gene, so if there are both blue and brown in the recent pedigree it is possible for the color combo to crop up.

Ah ok, so it is a unique condition that is different than a human having two different color eyes.

EDIT: or really, it is not a condition at all in Huskies....noted.

So how common is this type, bi-eyed or parti-eyed, in dogs? Are Huskies the only breed to have it commonly?

I know Australian Shepherds can have it, not sure about what other breeds though.

Is it normal in them, bi-eyed, or abnormal, heterochromatic?

I believe it's normal, i see a lot of parti eyed and bi eyed ones. But i really have no idea.

Both my boys are parti eyed actually. I think it's a lot more common that what people think. Ares is bi eyed and partieyed.

Ares:


Embry, his is really only the top of his eye

I feel lame - my dogs both have two of the same colored eyes. boring.

Sierra has parti eyes, her one is half brown half blue, the other half blue half brown. You can see it in a few pics I have posted. Love her eyes, jack is all blue

Saphire is a true bi-eyed. No parti-eye here.

Karli is part-eyed in one eye only. At first my hubby was kinda upset because he had wanted a blue eyed, black/white female and I was like "but it looks cool!!!" At first I was curious as to whether it was considered a "fault" but obviously its not. Although you do get those who think your dog is blind lol.