The overwhelming majority of blue cats are not linked to any of your "blue breeds"... these breeds are all pretty uncommon, even though However the recessive dilute (blue) gene is rather common during the domestic cat gene pool, especially from the US. A Doggy is a special bundle of complications. https://carcrashcompensation93456.bloginder.com/36202810/indicators-on-british-shorthair-you-should-know