The Big Genetics Experiment
An article, written by Ann Chamberlain, author and breeder of Rhodesian Ridgebacks, from the year 2011 that shows, how far she was ahead of her time.
I first met Rhodesian Ridgebacks in 1965 while living in Rhodesia. I honestly cannot remember seeing more than one litter with ridgeless in the four and a half years I was there.
When you have multiple loci involved in the phenotypic expression of the ridge, inheritance cannot be as simple as has been implied. There is no DNA test that can distinguish so-called homozygous dominant from hetereozygous. In other words, by looking at a dog with a ridge, you do not know if the dog can produce ridgeless if mated to another dog or not. It is hoped that by doing these two breedings, Dr. Hilbertz may be able to find more information so that eventually we can find a way to separate the heterozygous from the dominant dogs.