European Population Substructure: Clustering of Northern and Southern Populations
Author Information
Author(s): Seldin Michael F, Shigeta Russell, Villoslada Pablo, Selmi Carlo, Tuomilehto Jaakko, Silva Gabriel, Belmont John W, Klareskog Lars, Gregersen Peter K
Primary Institution: University of California Davis
Hypothesis
Can genetic differences within Europe be used to distinguish between northern and southern populations?
Conclusion
The study found a clear genetic distinction between northern and southern European populations based on SNP analysis.
Supporting Evidence
- The study identified a core set of SNP markers that can control for population structure in genetic studies.
- Most individuals with southern European ancestry showed >85% membership in the southern population group.
- The analysis revealed that Ashkenazi Jewish individuals cluster with southern Europeans.
Takeaway
People from northern and southern Europe have different DNA, which helps scientists understand how ancestry affects health.
Methodology
The study used genome-wide SNP analysis to examine population structure among 928 participants of European ancestry.
Potential Biases
Potential bias from the selection of participants with rheumatoid arthritis may affect allele frequencies.
Limitations
The study may have biases due to the inclusion of rheumatoid arthritis probands and lack of comprehensive sampling.
Participant Demographics
Participants included individuals of various European ancestries, including Italian, Spanish, and Swedish.
Statistical Information
P-Value
p<10−5
Confidence Interval
95% CI
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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