A blotched tabby cat features a distinct coat pattern recognized by its swirling markings. This pattern is a common variation seen in many domestic cats.
Identifying a Blotched Tabby
Blotched tabbies display thick, curving bands of color that create swirling patterns across their bodies. A prominent feature is a distinctive mark on each side of the body, often resembling a bullseye or oyster shape. Along the cat’s spine, there are typically three thick stripes. On the shoulders, a “butterfly” pattern is frequently observed, formed by the broad stripes and swirls. All tabby cats share an “M” shaped marking on their forehead, and thin lines are usually present on the legs and tail.
The Genetics of the Pattern
The blotched tabby pattern is determined by genetic factors. It is linked to the Taqpep gene (Transmembrane aminopeptidase Q), where mutations are responsible for the pattern. The blotched pattern, often denoted as TbTb, is a recessive trait. This means a cat must inherit two copies of the recessive allele, one from each parent, to express the blotched pattern.
The dominant allele, Tm, produces the mackerel tabby pattern, which consists of thin stripes. For any tabby pattern to be visible, the cat must also have at least one dominant “A” allele at the Agouti gene locus, which allows for the banding of color on individual hairs. If a cat inherits two recessive “a” alleles (aa), the tabby pattern is masked, resulting in a solid-colored coat, though faint “ghost markings” might sometimes be visible.
Distinguishing Blotched from Other Tabby Patterns
The blotched tabby pattern is distinct from other common tabby variations. Mackerel tabbies, often called “tiger stripes” or “fishbone tabbies,” have narrow, parallel vertical stripes running down their bodies. In contrast, blotched tabbies feature broad, swirling patterns and the characteristic “bullseye” mark on their sides, rather than thin stripes. Spotted tabbies, as their name suggests, have spots instead of stripes or swirls. These spots can vary in size and may appear as broken stripes, often arranged in lines. Ticked tabbies, such as the Abyssinian, have individual hairs with bands of alternating dark and light colors, known as agouti hairs, which create a flecked or “salt-and-pepper” appearance with minimal body stripes.
Debunking Common Myths
It is a misconception that “blotched tabby” refers to a specific cat breed. “Tabby” describes a coat pattern, not a breed, and this pattern can be found in various cat breeds and mixed-breed cats. Another misunderstanding is that a cat’s coat pattern dictates its temperament or personality. Scientific consensus does not link behavior with coat patterns; a cat’s personality is primarily influenced by its genetics, early life experiences, and environment. A blotched tabby cat’s disposition will vary individually and is not predetermined by its markings.