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Table 3 TaqMan genotyping of SNPs in the Grey region

From: Copy number expansion of the STX17 duplication in melanoma tissue from Grey horses

   

Polymorphism1

ID

Breed

Grey

SNP0

SNP1

Dup

SNP2

SNP3

SNP4

SNP5

SNP6

SNP7

231

Arabian

g/g

 

A

-

C

G

C

 

A

 

446

Thoroughbred

g/g

 

A

-

C

G

C

 

A

 

1107

New Forest Pony

g/g

 

A

-

C

G

C

 

A

 

1268

Icelandic

g/g

 

A

-

C

G

C

 

A

 

2857

Connemara

g/g

 

A

-

C

G

C

 

A

 

5772

Shetland

g/g

 

A

-

C

G

C

 

A

 

S062

Lipizzaner

g/g

 

A

-

C

G

C

 

A

 

6605

Shetland

g/g

 

A

-

C

G

T/C

A/G

G/A

A

1270

Icelandic

g/g

 

A

-

C

-

T/C

A/G

G/A

A

435

Arabian

g/g

 

A

-

C/T*

G

C

 

A

 

456

Arabian: Anc

g/g

 

A

-

C/T

G

C

 

A

 

800

Arabian: Anc

g/g

 

A

-

C/T

G

C

A

A

A

6972

Welsh

g/g

 

A

-

C/T

G

C

 

A

 

D011

Lipizzaner

g/g

 

A

-

C/T*

G

C

 

A

 

S046

Lipizzaner

g/g

 

A

-

C/T

G

C

 

A

 

6942

New Forest Pony

G/g

 

A

+/−

C

G

C

G

A

A

S057

Lipizzaner

G/g

 

A

+/−

C

G

C

G

A

A

899

Arabian

G/g

 

A

+/−

C

A/G

T/C

A/G

A or G/A

A/T

222

Arabian

G/g

 

A

+/−

C

A/G

T/C

 

G/A

 

5726

Connemara

G/g

 

A

+/−

C

A/G

T/C

 

G/A

 

6591

Connemara

G/g

 

A

+/−

C

A/G

T/C

 

G/A

 

D081

Lipizzaner

G/g

 

A

+/−

C

A/G

T/C

 

G/A

 

D076

Lipizzaner

G/g

 

A/G

+/−

C

A/G

T/C

 

G/A

 

213

Arabian

G/g

 

A

+/−

C/T

A/G

T/C

 

G/A

 

D091

Lipizzaner

G/g

 

A

+/−

C/T

A/G

T/C

 

G/A

 

D007

Lipizzaner

G/g

 

A/G

+/−

C/T

A/G

T/C

 

G/A

 

D010

Lipizzaner

G/g

 

A/G

+/−

C/T*

A/G

T/C

 

G/A

 

678

Arabian

G/g

 

A

+/−

C/T

G

T/C

 

G/A

 

D004

Lipizzaner

G/g

 

A

+/−

C/T

G

T/C

 

G/A

 

452

Thoroughbred

G/g

 

A

+/−

C

G

T/C

 

G/A

 

3156

Lipizzaner

G/g

 

A

+/−

C

G

T/C

 

G/A

 

6577

Welsh

G/g

 

A

+/−

C

G

T/C

 

G/A

 

6611

Shetland

G/g

 

A

+/−

C

G

T/C

 

G/A

 

SP1

Connemara:Sp

G/g

 

A

+/−

C

G

T/C

 

G/A

 

SP2

Connemara:Sp

G/g

 

A

+/−

C

G

T/C

 

G/A

 

SP3

Connemara:Sp

G/g

 

A

+/−

C

G

T/C

 

G/A

 

SP4

Connemara:Sp

G/g

 

-

+/−

C

G

T/C

 

G/A

 

D192

Lipizzaner

G/g

 

A/G

+/−

C

G

T/C

 

G/A

 

1271

Icelandic

G/g

 

A

+/−

C

G

T

A

G

A/T

P023

Lipizzaner

G/g

A/T

A/G

+/−

C

A/G

T/C

 

G/A

 

S065

Lipizzaner

G/g

A/T

A/G

+/−

C

-

T/C

 

G/A

 

P038

Lipizzaner

G/g

A/T

A/G

+/−

C

A/G

T/C

 

G/A

 

L034

Lipizzaner

G/g

A/T

A/G

+/−

C

A/G

-

 

G/A

 

P076

Lipizzaner

G/g

A/T

A/G

+/−

C

A/G

T/C

 

G/A

 

L040

Lipizzaner

G/g

A/T

A/G

+/−

C/T

A/G

T/C

 

G/A

 

L049

Lipizzaner

G/g

A/T

A/G

+/−

C/T

A/G

T/C

 

G/A

 

D007

Lipizzaner

G/g

A/T

A/G

+/−

C/T

A/G

T/C

 

G/A

 

230

Arabian

G/G

 

A

+/+

C

A

T

 

G

 

L010

Lipizzaner

G/G

 

A

+/+

C

A

T

 

G

 

D080

Lipizzaner

G/G

 

A/G

+/+

C

A

T

 

G

 

D006

Lipizzaner

G/G

 

G

+/+

C

A

T

 

G

 

399

Arabian

G/G

 

A

+/+

C/T

A

T

 

G

 

857

Arabian

G/G

 

A

+/+

C/T*

A

T

 

G

 

L004

Lipizzaner

G/G

 

A

+/+

C/T

A

T

 

G

 

D089

Lipizzaner

G/G

 

A/G

+/+

C/T

A

T

 

G

 

D098

Lipizzaner

G/G

 

G

+/+

C/T

A

T

 

G

 

6210

Lipizzaner

G/G

 

A

+/+

C

A/G

T

 

G

 

D009

Lipizzaner

G/G

 

A/G

+/+

C

A/G

T

 

G

 

D079

Lipizzaner

G/G

 

A

+/+

C/T

A/G

T

 

G

 

P086

Lipizzaner

G/G

 

A

+/+

C/T*

A/G

T

 

G

 

D003

Lipizzaner

G/G

 

A/G

+/+

C/T

A/G

T

 

G

 

L053

Lipizzaner

G/G

 

A/G

+/+

C/T*

A/G

T

 

G

 

L024

Lipizzaner

G/G

 

A

+/+

C

G

T

 

G

 

6580

Welsh

G/G

 

A

+/+

C/T

G

T

 

G

 

D102

Lipizzaner

G/G

 

A

+/+

C/T

G

T

 

G

 

L090

Lipizzaner

G/G

 

A

+/+

C/T*

G

T

 

G

 
  1. Results from TaqMan genotyping of selected SNPs located in the Grey region in 357 non-Grey and Grey horses from 8 different breeds, including the late-greying Connemara horses (Connemara:Sp) and Arabian horses (Arabian: Anc) carrying a non-Grey haplotype that is ancestral or closely related to the Grey haplotype. The table shows representative genotypes selected from all breeds. For SNP2, individuals with a strong signal for the variant T allele (C/T ratio equal 1) are marked with an asterisk. SNP0 SNP5 and SNP7 were genotyped by Sanger sequencing only in key individuals. SNP0 is at nucleotide position 6,553,858 in STX17.
  2. 1SNP1 is at nucleotide position 6,553,868 in STX17 ; Dup is the 4.6 kb duplication in STX17 causing Grey; SNP2 is at nucleotide position 6,587,140 in STX17 ; SNP3 is at nucleotide position 6,640,661 in TXNDC4; SNP4 is at nucleotide position 6,775,832 in INVS; SNP5 is at nucleotide position 6,778,924 in INVS; SNP6 is at nucleotide position 6,782,059 in INVS; SNP7 is at nucleotide position 6,790,986 in INVS .