Underdominance (IMAGE)
Caption
Simulated release of 13 transgenic individuals in two populations that consist of 25 individuals each, which are connected via migration (horizontal axis: frequency of the mutated gene in population 1; vertical axis: frequency of mutated gene in population 2). Left: At a migration rate of 1 percent, both populations behave as desired in release trials: in population 1, the frequency of the mutation very quickly decreases and approaches zero. In population 2, however, there is a high probability that the mutated gene will dominate over the natural gene variant, and this state is maintained for a long time (yellow). As a result, at this migration rate, the time to extinction is very long in both populations. Right: At a migration rate of 10%, the mutation is very likely to be quickly lost in both populations.
Credit
Phillip M. Altrock/MPI for Evolutionary Biology
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