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Table 1 Sample size needed to detect selection at 0.05 significance with 0.50 power.

From: Detecting selection-induced departures from Hardy-Weinberg proportions

Fitness dominance

Deleterious dominant

Deleterious recessive

Overdominance

Underdominance

Unequal allele frequencies (p = 0.1)

    

Weak selection (s = 0.01)

4.66 × 106

4.72 × 106

1.21 × 106

1.16 × 106

Medium selection (s = 0.05)

1.74 × 105

1.86 × 105

5.30 × 104

4.22 × 104

Strong selection (s = 0.1)

3.99 × 104

4.57 × 104

1.48 × 104

9.35 × 103

Equal allele frequencies (p = 0.5)

    

Weak selection (s = 0.01)

6.08 × 106

6.08 × 106

1.55 × 105

1.52 × 105

Medium selection (s = 0.05)

2.34 × 104

2.34 × 104

6.46 × 103

5.84 × 103

Strong selection (s = 0.1)

5.54 × 103

5.54 × 103

1.69 × 103

1.39 × 103

  1. α = 0.05 and β = 0.5; sample sizes are computed using equation (12); fitness dominance parameters are as follows: deleterious dominant k = 1 - s, deleterious recessive allele k = 1/(1 - s), overdominance k = (1 + s)2, underdominance k = (1 - s)