White labs

[MJT1977]

Our "white" yellow lab female...

Wow... I don't mean to be rude, but realized your lab has really short legs, is she like this or is the pic deceiving. She is very nice looking.

[david gibson]

Wow... I don't mean to be rude, but realized your lab has really short legs, is she like this or is the pic deceiving. She is very nice looking.

wide angle lens pointing down does that....

[david gibson]

one of these two little terrors is mine, the breeder will decide which one i get based on attitude and birdiness so i am not too concerned about color....

[Burnt Oak Retrievers]

No, she really is that short (17 inches). She's out of a Wildrose female and a conformation bred male...she doesn't rock the boat.

[Ironman]

Modifier genes. Lots of em.
Same thing that makes an Irish Setter red, a golden retriever gold, and a buff cocker spaniel, well, buff. Throw them together with the yellow labs and they are ALL recessive at the E locus and that resultant yellow color lightened or darkened by an unknown number of modifier genes that toggle on or off to add or subtract color.

So it is other gene(s) that modify the expression of the yellow pigment (ee).

From other somewhat similar topics here on RTF, its pretty clear the the first known yellows in the late 1800's were all quite dark, more on the Fox Red side.

Anyone know what these modifier genes are or how they showed up in the Labrador?