SNP Variation in North Europe
Author Information
Author(s): Salmela Elina, Lappalainen Tuuli, Fransson Ingegerd, Andersen Peter M., Dahlman-Wright Karin, Fiebig Andreas, Sistonen Pertti, Savontaus Marja-Liisa, Schreiber Stefan, Kere Juha, Lahermo Päivi
Primary Institution: University of Helsinki
Hypothesis
What is the population structure in Northern Europe based on SNP variation?
Conclusion
The study found significant genetic differentiation among populations in Northern Europe, particularly between Eastern and Western Finns.
Supporting Evidence
- Small but statistically significant differences were observed between the European populations.
- The Germans and British were less differentiated than the Swedes and Finns.
- Genetic drift was noted particularly in Eastern Finns due to their smaller population size.
- Population history is important for understanding genetic variation patterns.
Takeaway
The study looked at DNA differences in people from Northern Europe and found that even small groups can be quite different from each other.
Methodology
The study analyzed almost 250,000 SNPs from samples across Northern Europe using Affymetrix 250K Sty SNP arrays.
Potential Biases
Potential bias from population structure in association studies was noted.
Limitations
The study's findings may not fully represent the genetic diversity of all populations in Germany and Britain due to limited sampling.
Participant Demographics
The study included samples from Eastern and Western Finland, Sweden, Northern Germany, and Great Britain.
Statistical Information
P-Value
p<10−4
Confidence Interval
±0.0005
Statistical Significance
p<10−4
Digital Object Identifier (DOI)
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