In the real breeding world, S1 has nothing to due with feminized plants. Going down the path of the S1 is for creating near-isogenic lines (NILs), or the back-cross, if you will, until you get a seed line that very much resembles the original plant BUT with a stabilized trait of interest. This is normally done on plants that can self pollinate (monoecious plants). Its trickier with dioecious plants such as cannabis...
Lets take the White, cuz peeps like to reverse that one. First, you get that clone only female, chemically reverse it pollinate itself and you get an S1. Second, you sift through those S1 feminized beans to find that "keeper pheno". With that Keeper S1 female, you chemically reverse it to pollinate the original clone-only - that brings you to S2. You can continue this, if you have a good plan to achieve your desired goals.
Now if you take the White Clone-only, chemically reverse it and pollinate some thing else, like Purple Urkle, you get a White Purple Urkle, not an S1 urkle. Even though those seeds may be feminized, that is considered an outcross.
R1 refers to human haplotypes that define our genealogy.
