Table 4 Coefficients for expressions describing the expected phenotypic covariance between male relatives in the proposed breeding design to estimate variances due to autosomal, sex-linked and sex-specific gene expression
From: The quantitative genetics of sexual dimorphism: assessing the importance of sex-linkage
Male–male relationships | Coefficients | ||||||
|---|---|---|---|---|---|---|---|
| Â | Autosomal | Sex-linked | Maternal | ||||
| Â | V A a | V D a | V A X | V D X | V E m | V A m | Cov A m |
1. Father-Son | 1/2 | 0 | 0 | Â | 0 | 0 | 1/4 |
2. Full brothers | 1/2 | 1/4 | 1/2 | Â | 1 | 1 | 1 |
3. Paternal half brothers | 1/4 | 0 | 0 | Â | 0 | 0 | 0 |
4. Single first cousins, dams full sisters | 1/8 | 0 | 3/8 | Â | 0 | 1/2 | 1/2 |
5. Single first cousins, sires full brothers | 1/8 | 0 | 0 | Â | 0 | 0 | 0 |
6. Single first cousins, opposite sex full sibs | 1/8 | 0 | 0 | Â | 0 | 0 | 1/4 |
7. Double first cousins, sires full brothers, dams full sisters | 1/4 | 1/16 | 3/8 | Â | 0 | 1/2 | 1/2 |
8. Double first cousins, opposite sex full sibs | 1/4 | 1/16 | 0 | Â | 0 | 0 | 1/2 |
9. Paternal uncle–nephew | 1/4 | 0 | 0 |  | 0 | 0 | 1/4 |
10. Maternal uncle–nephew | 1/4 | 0 | 0 |  | 0 | 1/2 | 3/4 |
11. Paternal grandfather–grandson | 1/4 | 0 | 0 |  | 0 | 0 | 1/8 |
12. Maternal grandfather–grandson | 1/4 | 0 | 1/2 |  | 0 | 1/4 | 5/8 |
