Tabby cat in the spine. The Spotted tabby is a modifier that breaks up the Mackerel tabby pattern so that the stripes appear as spots. Similarly, the stripes of the Classic tabby pattern may be broken into larger spots. Both large spot and small spot patterns can be seen in the Australian Mist, Bengal, Serengeti, Egyptian Mau, Arabian Mau, Maine Coon, and Ocicat breeds. The tabby patterns are due to three distinct gene loci and one modifier: The agouti gene, "A/a", controls whether or not the tabby pattern is expressed. The dominant "A" expresses the underlying tabby pattern, while the recessive non-agouti
Cat body-type mutation from Treker's dominant mutation. Most teacup and toy size Persian kittens raised now are descendants from Silver and Golden color division to reduce cat size and are in no way related to Treker. Cat body-type mutation Cats, like all living organisms, occasionally have mutations that affect their body type. Sometimes, these cat body-type mutations are striking enough that humans select for and perpetuate them. This is not always in the best interests of the cat, as many of these mutations are harmful; some are even lethal in their homozygous form. This page gives a selection of cat body type mutant