Researchers have discovered the gene that determines the baldness of several hairless dog breeds, and say it may
offers new insight into the development of skin and hair in other animals – including humans [New Scientist].
Mexican hairless, Peruvian hairless and Chinese crested dog breeds all share the same mutation, researchers say, which
probably appeared about 4,000 years ago in Mexican hairless dogs and eventually passed through breeding into the other two dog breeds, Leeb says. “It’s extremely improbable that an identical mutation would have arisen three times,” he says [Science News].
In the study, published in Science [subscription required], researchers found
revealed an insertion of seven letters, or base pairs, of genetic code in a gene called FOXI3 in all of the hairless dogs. Although the exact function of the FOXI3 gene is unknown, other genes in the FOX family control embryonic development in mammals. When the researchers investigated ...
