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Table 1 Sample size (N), genotypes and frequencies of the E, e and eaalleles of the Extension gene and Hardy-Weinberg Equilibrium (HWE) test results for the Pottoka and Jaca Navarra ponies and for the Euskal Herriko Mendiko Zaldia (EHMZ) and Burguete heavy-horse breeds.

From: Identification of horse chestnut coat color genotype using SNaPshot®

Breed

Pottoka

Jaca Navarra

EHMZ

Burguete

N

125

56

24

44

Genotypes

    

E/E

86

20

2

4

E/e

38

34

11

17

E/e a

1

2

4

0

e/e

0

0

7

18

e/e a

0

0

0

4

ea/ea

0

0

0

1

Allele frequencies

    

E

0.844 ± 0.023

0.679 ± 0.044

0.396 ± 0.071

0.284 ± 0.048

e

0.152 ± 0.023

0.304 ± 0.043

0.521 ± 0.072

0.648 ± 0.051

e a

0.004 ± 0.004

0.018 ± 0.013

0.083 ± 0.040

0.068 ± 0.027

HWE p value

0.1347 ± 0.0004

0.0007 ± 0.0000

0.0739 ± 0.0002

0.1604 ± 0.0002