Gene flow example

Before Ne = 200 Ne = 300

qj = 0.9 qi = 0.5

After qj’ = 0.9 qi’ = 0.51

mij = 5 = 0.0167

300

qi’ = (1 - mij) qi + mij(qj)

= (1 - 0.0167) (.5) + (0.0167) (0.9)

= (0.5067) = 0.51

(If number of immigrants = 50, then qi’ = 0.57)

Donor population (j) Recipient (i)

41e

5 individuals