I take these genetic diversity studies with a grain of salt.
Since a queen randomly mates with a number of drones, the genetics of the
patrilines of her daughters are like being dealt a hand of cards.
Some hands are winners, others losers, depending upon what variations in
environment, pathogens, and other stressors that the colony must deal with.
In some environmental situations, a certain patriline may exhibit a trait
that greatly helps the colony as a whole.  In other cases two patrilines
may work against each other.

Some years ago I asked Kim Fondrk, who managed Dr. Rob Page's
pollen-hoarding lines of bees, about how well their single-drone
inseminated colonies performed.
Despite these SDI colonies having very little genetic diversity in the
workers, he told me that some performed great, others not so.

Randy Oliver
Grass Valley, CA
530 277 4450
ScientificBeekeeping.com

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