|
Design matrix (X) displaying theoretical causal components of observed variances and covariances. |
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| Observed component |
Causal components |
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|
|
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| σ2AO |
σ2DO |
σAOAM |
σ2AM |
σ2DM+C |
σ2E |
|
|
|
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| Y1 |
0.5 |
0 |
0.25 |
0 |
0 |
0 |
| Y2 |
0 |
0 |
0.75 |
0.5 |
0 |
0 |
| Y3 |
0.5 |
0 |
0.25 |
0 |
0 |
0 |
| Y4 |
0.5 |
0 |
1.25 |
0.5 |
0 |
0 |
| Y5 |
0.5 |
0.25 |
1 |
1 |
1 |
0 |
| Y6 |
0.5 |
0.25 |
0 |
1 |
1 |
0 |
| Y7 |
0.5 |
0.25 |
0.5 |
0 |
0 |
0 |
| Y8 |
0 |
0 |
0.5 |
1 |
1 |
0 |
| Y9 |
0 |
0 |
1 |
0 |
0 |
0 |
| Y10 |
0.5 |
0.75 |
0 |
0 |
0 |
1 |
|
σAO2 = additive direct genetic variance, σDO2 = dominance direct genetic variance, σAOAM = direct-maternal additive genetic covariance, σAM2 = additive maternal (or 'indirect') genetic variance, σ2DM+C = dominance maternal genetic variance and common environmental variance (maternal and cage), and σE2 = residual environmental variance. Further details are in the Methods. | ||||||
Gleeson et al. BMC Evolutionary Biology 2005 5:61 doi:10.1186/1471-2148-5-61 |
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