Genetic Drift

Genetic Drift

Genetic Drift

Question 3

Generations

F(t)

?(0)

F(t+1)

1

0

0.5

0.5

2

0.5

0.5

0.55

3

0.55

0.55

0.595

4

0.595

0.595

0.6355

5

0.6355

0.6355

0.67195

6

0.67195

0.67195

0.704755

7

0.704755

0.704755

0.73428

8

0.73428

0.73428

0.760852

9

0.760852

0.760852

0.784766

10

0.784766

0.784766

0.80629

11

0.80629

0.80629

0.825661

12

0.825661

0.825661

0.843095

13

0.843095

0.843095

0.858785

14

0.858785

0.858785

0.872907

15

0.872907

0.872907

0.885616

By putting the formula for Ft+1 = and similarly for = we get the above results using a small simulation process. The expected value of F after three generations is found to be 0.595. In the above table, calculation of the breeding coefficient has been calculated till 15 generations.

Ft+1 = =

Therefore, k =

The parameter describes the self - fertilization process and the parameter is 1/N which shows that the fertilization is moving with the auto - fertilization. The speed at which the single gamete pool has been drawn is 1/N.

The resulting values for ...