Crossing the threshold: gene flow, dominance and the critical level of standing genetic variation required for adaptation to novel environments.

Abstract excerpt

Genetic architecture plays an important role in the process of adaptation to novel environments. One example is the role of allelic dominance, where advantageous recessive mutations have a lower probability of fixation than advantageous dominant mutations. This classic observation, termed 'Haldane's sieve', has been well explored theoretically for single isolated populations adapting to new selective regimes....

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