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DNA Traits · Appearance

Unibrow association

Hair that grows between the eyebrows and joins them.

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Evidence · Not yet replicated

What the research found

In the cited research, the G allele at rs2218065 was associated with less hair connecting the eyebrows.

AA
More joined
AG
Middle
GG
Less joined
Evidence
Discovery association in men from an admixed Latin American cohort
Who was studied
Men in the CANDELA cohort from five Latin American countries
1000 Genomes Project

How common each genotype is

How common each genotype is in the 1000 Genomes Project, by region
RegionAAMore joinedAGMiddleGGLess joined
All regions2,504 people26%49%25%
Africa661 people32%48%20%
The Americas347 people32%44%24%
East Asia504 people36%47%17%
Europe503 people11%51%38%
South Asia489 people21%52%27%

Among the 2,504 people of the 1000 Genomes Project, in five world regions. These percentages describe groups of people, never anyone’s chance of having a trait.

rs2218065

The marker

Gene or region
PAX3 region
Marker
rs2218065
Location
Chromosome 2 · GRCh37 223,034,082 · GRCh38 222,169,363
Letters studied
A and G, with G as the studied allele

A DNA Traits report reads this marker in your raw DNA file and shows which of the three genotypes is yours, with how common it is. It counts the copies of the studied allele; it does not measure the trait itself.

Marker
PAX3 region · rs2218065
Location
Chromosome 2 · GRCh37 223,034,082 · GRCh38 222,169,363
Studied allele
G
Published statistic
P 5e-8 for rs2218065 (ancestral A > derived G) with monobrow in CANDELA men (Table 1); within-country meta-analysis P 1.77e-7 (Supplementary Table 4); G has a negative coefficient (Figure 2h, plotted only) (Table 1; Supplementary Table 4; Figure 2h)
1000 Genomes Project phase 3, people with 0, 1 and 2 copies
All regions 662 / 1216 / 626 · Africa 212 / 316 / 133 · The Americas 111 / 154 / 82 · East Asia 182 / 238 / 84 · Europe 54 / 256 / 193 · South Asia 103 / 252 / 134
See this card in the sample report
Limits

What it cannot tell you

This common marker was studied using an ordinal score for hair connecting the eyebrows in men. It does not predict a unibrow, and it is not a test for rare PAX3-related disorders.

A genome-wide association scan in admixed Latin Americans identifies loci influencing facial and scalp hair features (Adhikari et al., 2016)
The same topic

More in Appearance

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