You know, I wonder if GMO technology has advanced enough to replace hybridization.
Hybrids give you two different chromosomes, uniformly in your population. You take population AA and aa and get Aa. The next generation you're back to a mix of AA/Aa/aa.
There's no reason -- in the abstract -- you couldn't duplicate your gene and put two copies of it on the same chromosome, one A and one a, so that you can skip the hybridization. But does that work with current technology? I don't know!
Hybrids give you two different chromosomes, uniformly in your population. You take population AA and aa and get Aa. The next generation you're back to a mix of AA/Aa/aa.
There's no reason -- in the abstract -- you couldn't duplicate your gene and put two copies of it on the same chromosome, one A and one a, so that you can skip the hybridization. But does that work with current technology? I don't know!