In the hushed realm of domestic felines, few breeds draw as much attention as the Bengal. With a spotted coat reminiscent of wild big cats, this cat seems straight from the jungle. But beyond its spectacular appearance, a recent genetic discovery reveals another facet just as fascinating: some Bengal cats literally glitter under light, as if sprinkled with glitter. This phenomenon, dubbed “glitter,” intrigues scientists and unveils a genetic mystery as rare as it is dazzling.
A Coat That Shines
The glittering fur of certain Bengals is not merely an optical illusion or an illusion. Under certain lighting, their hairs reflect light like diamonds. This phenomenon is neither widespread nor originally sought after, but it quickly became a coveted trait among passionate breeders.
A team of researchers from the HudsonAlpha Institute for Biotechnology studied this mystery by analyzing the DNA of more than 3,000 Bengal cats. Their aim: identify the genetic factor behind this unusual glow. Their work, published in Current Biology, revealed that this trait, called “glitter,” is linked to a mutation in the Fgfr2 gene, a receptor involved in fibroblast growth.
A Double-Edged Gene
The Fgfr2 gene plays a fundamental role in all mammals, notably in embryonic development and organ formation. A complete mutation of this gene is generally lethal, but in Bengals it is a moderate alteration that changes the fur’s structure without compromising the animal’s health.
“Our results show that a partial reduction of Fgfr2 triggers the manifestation of a desirable trait, mainly at the level of the fur,” summarizes the geneticist Kelly McGowan, co-author of the study. This change makes the fur finer and smoother, which explains the unique way it reflects light.
Remarkably, this trait does not originate from the Asian leopard, the Bengal’s wild ancestor, but seems to have arisen spontaneously during breeding. Among the millions of cats analyzed in genetic databases, only 5,513 carry this altered gene. Yet about 60% of the Bengal population are carriers, evidence of its strong prevalence within the breed.
A Feline Unlike Any Other
The Bengal was already a breed apart. Created in the 1960s in California, it results from a cross between a domestic cat (Felis catus) and the Asian leopard (Prionailurus bengalensis). Although the two species share some physical resemblance, they are genetically distant: their last common ancestor goes back six million years, a gap greater than the genetic distance between humans and chimpanzees.
This hybrid gives the Bengal a suite of distinctive traits. In addition to its striking appearance, this cat is incredibly active, curious, and playful. Unlike most domestic felines, it loves water, which brings it closer to its wild ancestor than to the typical house cat.
But this boundless energy can create challenges. Because of its heightened need for mental and physical stimulation, some experts advise against adoption if you cannot provide ample space or activities. In certain cities like New York, it is even illegal to adopt a Bengal unless it has been separated from its wild ancestor by at least six generations.
Between Admiration and Responsibility
The glitter of Bengals is not just a pretty detail: it embodies the complexity of modern feline breeding. On one hand, this rare mutation creates a spectacular effect that intensifies the fascination with these cats. On the other, it raises questions about the limits of domestication and the ethical responsibilities of breeders.
Whether admired for their beauty or questioned for their wilder temperament, Bengals remain a marvel of feline genetics. And now that we know some of them literally shine like diamonds, there is every reason to believe they will continue to make headlines… for a long time.
