Table 1 Colocalization results of expression and methylation cis-QTLs from cultured melanocytes (eQTL and meQTL, respectively) with GWAS SNPs on each hair colour category.

From: A large Canadian cohort provides insights into the genetic architecture of human hair colour

Chromosome

Candidate SNP

Posterior probability

Regional probability

Posterior explained by SNP

Gene/methylation annotation

QTL

Blonde Hair Colour

  5

rs35391

0.83

0.85

0.43

SLC45A2

eQTL

  5

rs35391

0.98

0.99

0.54

SLC45A2|OpenSea

meQTL

  5

rs35391

0.96

0.97

0.55

OpenSea

meQTL

  6

NA

NA

0.95

NA

OpenSea

meQTL

  14

NA

NA

1.00

NA

SLC24A4

eQTL

  14

rs8022442

0.99

1.00

1.00

OpenSea

meQTL

  14

rs8022442

0.95

0.95

1.00

SLC24A4 (Body) | OpenSea

meQTL

  15

rs12913832

1.00

1.00

1.00

OCA2

eQTL

  15

rs12913832

0.99

0.99

0.94

AC090696.2

eQTL

  15

rs12913832

1.00

1.00

0.99

HERC2 (Body) | OpenSea

meQTL

  15

rs12913832

0.98

0.99

0.98

HERC2 (Body) | S_Shelf

meQTL

  15

rs12913832

0.98

0.98

0.98

HERC2 (Body) | S_Shore

meQTL

  16

rs258322

1.00

1.00

1.00

CDK10 (TSS1500)|N_Shore

meQTL

  16

rs258322

1.00

1.00

1.00

LOC100130015 (Body); GAS8 (3’ UTR)|OpenSea

meQTL

  16

rs258322

0.94

0.94

1.00

DPEP1 (5’ UTR)|OpenSea

meQTL

Brown Hair Colour

  5

rs35391

0.83

0.85

0.57

SLC45A2

eQTL

  5

rs35391

0.98

0.99

0.65

SLC45A2 (1st Exon) | OpenSea

meQTL

  5

rs35391

0.97

0.97

0.66

Open Sea

meQTL

  6

rs7773997

0.94

1.00

0.94

Open Sea

meQTL

  15

rs12913832

1.00

1.00

0.98

OCA2

eQTL

  15

rs1129038

0.99

0.99

0.54

AC090696.2

eQTL

  15

rs12913832

1.00

1.00

0.87

HERC2 (Body) | OpenSea

meQTL

  15

rs12913832

0.98

0.98

0.73

HERC2 (Body) | S_Shelf

meQTL

  15

rs12913832

0.97

0.97

0.74

HERC2 (Body) | S_Shore

meQTL

  1. We show colocalized SNPs with a posterior probability of ≥0.8. We tested all the significant eQTL genes or meQTL probes within ±250 kb regions flanking the GWAS lead SNPs. The Gene/Methylation Annotation indicates the location of CpG probes with respect to the nearest gene, as well as relative to CpG island. NA = limited evidence of a single SNP driving the colocalization.