Development of domestic chicken likely involved a limited amount of interspecies hybridization with grey and possibly green jungle fowls to add a good number of alleles not already present in red jungle fowl. Additionally, the same genetic process that hampers fertility of hybrids can greatly speed development of novel gene combinations not found in any jungle fowl species. Thereafter mutation and selection for mutant allele / genes has been able to operate over many thousands of years to generate alleles that likely were not present in any of the founding jungle fowl species be they red, grey or green.I am curious as to who or what this comment was directed towards. Of course I dont know the context, but it seems to me (as well as my wife looking over my shoulder) your insinuating that perphaps I dont know what I am referring to when I say I own Gallus Gallus9red jungle fowl? Perphaps you could elaborate on your comment, tactfully preferably.
Correct me if I am misguided but all the reading I have done suggest that junglefowl(gallus gallus in particular) are thought to be chickens ancestors so to speak. That these are kinda where chickens originated from. If thats true then it blows my mind that so many chicken breeds and colorations have been developed.