Table A1. Effect of a single mutation at B, assuming that A is initially polymorphic.
Gamete frequencies | |||||
---|---|---|---|---|---|
Case | A1B1 | A1B0 | A0B1 | A0B0 | D |
General | w | x | y | z | wz − xy |
Before mutation | 0 | a | 0 | 1 − a | 0 |
A1-linked mutation | 1/2N | a − 1/2N | 0 | 1 − a | (1 − a)/2N |
A0-linked mutation | 0 | a | 1/2N | 1 − a − 1/2N | − a/2N |