The converse of SDM's reference is that a local population with a genetic weakness will always have that weakness unless it acquires new genetic information from stronger strains (excluding mutation). That is a good reason for the queens polygamy.
The weeknes of genome starts from small apiary, where you rear queens from the best Queen. The genepool becomes then narrower. IT has noting to do with native or local. IT is selection by the beekeeper.
What about natural selection on two generations? The apiary is quickly ruined. Bees are far from wanted. Colonies turn quickly to the average form, but they get their original bee features: Stinging, swarming, average hive size.
Where we need breeding if nature read our wishes and make them true.
.... This chain is full of Santa like hopes. I do not need to pick up Greece stories to know, what happens if I do not select my bees and if I do not import new genes outside my local genepool. I have seen it so often during 40 years.
... What I know good queen breeders, they import all the time queens from new genepools and take advantages from genes outsde of their "local bees".
..... Actually beebreeders have biggest fight against their local bees, which try to mix the breeding work in two years.
We can bark in Finland imported Italian queens what they are, but they are still far better than local hobby beekeepers' mongrels.
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