This study found an association between a splice site variant in the KRT71 gene and curly hair in Selkirk Rex cats, identifying a significant locus on chromosome B4.
October 2025 in “HAL (Le Centre pour la Communication Scientifique Directe)”
This research observed that, in domestic cats like Maine Coon and Rex breeds, a "piebald" coat color pattern is likely influenced by the Silver locus, although the specific mutations involved are yet to be published.