And btw, I am also doing this "Breeding Program" with Tobacco, Peppers, Mint (big family of plants) and Marijuana.
With Tobacco their is the stuff Native Americans used for Religious purposes, then there is Commercial Tobacco the Settlers bred and that other people bred around the world once it spread, so that one has all different types and strains. Then there is like Woodland Tobacco and Jasmine Tobacco which aren't supposed to be smoked, then there are plants in Australia that are in the same Genus but different Species. And crossing species is a pretty common stable mix.
With Peppers there are all the different ones, like Ghost Peppers from India, and Carolina Reapers made from Ghost Peppers and some other pepper. Then there are Trinidad Scorpions and Black Cobras, etc. And I have seeds for all of those.
With Mint there is everything from Spearmint, Peppermint and Aquatic Mint, to Catnip and Wild Dagga and Motherwort. First I am going to breed Wild Dagga and Motherwort, then mix others in.
And with MJ there are Indica and Sativa species which are mixed all the time, but then there are African strains which are rarely mixed right now, and then there are Kush strains which come from India/Pakistan/Afghanistan. Then there are South American and Asian strains, as well as Rudaralis.
And on top of all the mixes that can be made naturally there are way to also like create tumors on plants that give them strange DNA. And this method has actually been used in the past to create bigger fruits. There are all kinds of borderline Organic/Borderline GMO things that can be done with plants that were invented by Norman Borlaugh.
But basically I want to do the same thing with Yeast. I will get a collection of Ester-y Yeasts, then get Distiller's Yeast and a few others, then I will start getting different Species of Yeasts and different mutation techniques and see what I can make.