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Table 2 Significant associations detected for the dilution-related traits and the Grey-Intensity trait. For each significant association, the position, and gene effect estimates (additive and dominance) are detailed. See Methods for further details about the trait categories.

From: Genetic effects on coat colour in cattle: dilution of eumelanin and phaeomelanin pigments in an F2-Backcross Charolais × Holstein population

Chrom.

Trait

Position (cM)

F-value

pc-value

Additive Effect

Dominance Effect

5

Quantitative-Dilution

68

452.0

<0.0001

0.93 ***

-0.06

5

Quantitative-Black

68

436.6

<0.0001

0.94 ***

-0.11 *

5

Quantitative-Red

69

125.1

<0.0001

0.86 ***

-0.14

28

Quantitative-Dilution

0

4.9

0.016

-0.19 **

0.00

28

Quantitative-Red

0

5.9

0.019

-0.39 ***

0.18

28

Grey-Intensity▲▲

1

5.3

0.016

-0.12

-0.32 **

  1. Quantitative-Dilution (443 individuals included in analysis): White (1), Pale colour (2; Light-Red and Grey), Dark colour (3; Dark-Red and Black).
  2. Quantitative-Black (327): White, only whites of ED- genotype at MC1R (1), Grey (2), Black (3).
  3. Quantitative-Red (130): White, excluding whites of ED- genotype at MC1R (1), Light-Red (2), Dark-Red (3).
  4. Grey-Intensity (141): Light-Grey (1), Dark-Grey (2)
  5. pc-value: chromosome-wide p-value
  6. * p-value < 0.05; ** p-value < 0.01; ** p-value < 0.001
  7. Includes MC1R genotype (ED-, E+e, ee) as a fixed effect.
  8. ▲▲ Includes SILV c.64A>G genotype as a fixed effect.