neverbreak
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These types of things are what I'm trying to consider in my breeding goals, however, I don't know where to begin and what to shoot for. Should one cross to bring out recessive traits in hopes of stumbling upon something "new", should I cross to incorporate a dominant trait from one stable strain to another a different stable strain, should I cross existing "elite" hybrids to create "newer" hybrids, should I cross "elite" hybrids to different landrace strains for whatever reason, or what?!?!! Makes my head spin.
LOVE the convo though guys. Keep it going, very intriguing.
to bring out a recessive trait, ya would need to cross a plant with that recessive trait, with another plant with the same recessive trait. then with the offspring that express the recessive trait, ya would cross it back with one of the parents, and so on. but ultimately, all selective breeding narrows down the number of allele in a given population, as when ya start to stabilize the phenotype ya like like, ya effectively remove the other alleles in most cases.
as for dominant traits, not all of them are compatible. to have two dominant traits expressed requires codominance, otherwise, one will be expressed at the cost of the other.
the idea behind using landraces, rather than crossing preexisting hybrids with other preexisting hybrids, it that the landraces have a higher diversity of alleles in them, having had less stabilization of particular traits / phenos through extensive selective breedin. this is exactly why agri scientists are now travellin to countries which have been farming particular grains or legumes for thousands of years, or the countries of their origin, in the hopes of findin varieties with great genetic diversity, so that new, hardier cultivars can be created.
neverbreak