Table 4. Summary of Q ST -F ST analyses on laboratory G1s of 14 L. stagnalis populations.
Trait/Parameter | N | Nfam | Vb | Vf | Observed Q ST - F ST | Neutral Q ST-F ST 95% CI | P-value left | P-value right | Divergence pattern |
Growth | |||||||||
Hatching size | 427 | 211 | 1.46E-03 | 1.86E-03 | −0.098 | [−0.160; 0.150] | 0.141 | 0.859 | Neutrality |
Parameter b | 492 | 144 | 4.52E-04 | 1.19E-03 | −0.187 | [−0.160; 0.154] | 0.009 | 0.991 | Homogenizing selection |
Parameter k | 492 | 144 | 2.48E-07 | 2.99E-07 | −0.089 | [−0.155; 0.156] | 0.169 | 0.831 | Neutrality |
Parameter A | 492 | 144 | 6.02E-03 | 6.56E-04 | 0.446 | [−0.153; 0.155] | 1.000 | 0.000 | Divergent selection |
Size at 119 days | 2855 | 183 | 2.26E+01 | 5.07E+00 | 0.285 | [−0.151; 0.155] | 1.000 | 0.000 | Divergent selection |
Reproduction | |||||||||
Ability to lay eggs | 492 | 144 | 2.70E+00 | 5.39E-08 | 0.709 | [−0.153; 0.157] | 1.000 | 0.000 | Divergent selection |
Time to oviposition | 492 | 144 | 2.86E-02 | 8.36E-03 | 0.219 | [−0.141; 0.151] | 0.996 | 0.004 | Divergent selection |
Number of clutches | 492 | 144 | 1.10E-01 | 1.02E-10 | 0.709 | [−0.160; 0.151] | 1.000 | 0.000 | Divergent selection |
Number of eggs | 492 | 144 | 8.22E+02 | 5.64E+02 | 0.017 | [−0.162; 0.163] | 0.605 | 0.395 | Neutrality |
Clutch size | 1537 | 144 | 2.95E+00 | 1.47E+00 | 0.088 | [−0.158; 0.168] | 0.885 | 0.115 | Neutrality |
Hatching rate | 1537 | 144 | 3.27E-01 | 6.29E-01 | −0.154 | [−0.157; 0.160] | 0.025 | 0.975 | Homogenizing selection |
Analyses were performed using a full-sib design and accounting for population inbreeding.
N = sample size, Nfam = number of families, Vb and Vf indicate between population and family variance, respectively. Gompertz growth parameters: A is asymptotic size, b is related to size at birth, k is related to growth rate. Left and right P-values indicate the probability for QST-FST observed value to lie within the neutral distribution (unilateral test based on 1000 bootstraps, α = 0.025).