Genetic Ancestry and Spouse Selection in Latino Populations
Author Information
Author(s): Neil Risch, Shweta Choudhry, Marc Via, Analabha Basu, Ronnie Sebro, Celeste Eng, Kenneth Beckman, Shannon Thyne, Rocio Chapela, Jose R Rodriguez-Santana, William Rodriguez-Cintron, Pedro C Avila, Elad Ziv, Esteban Gonzalez Burchard
Primary Institution: Institute for Human Genetics, University of California, San Francisco
Hypothesis
Does assortative mating based on genetic ancestry occur in Latino populations?
Conclusion
Assortative mating related to genetic ancestry persists in Latino populations to the current day, impacting their genomic structure.
Supporting Evidence
- Mexican pairs showed strong spouse correlations for European and Native American ancestry.
- Puerto Rican pairs showed significant spouse correlations for African and European ancestry.
- Correlations were not attributable to socioeconomic status or geographic heterogeneity.
- Ancestry variance is predicted to decline in each generation, but less so under assortative mating.
Takeaway
People in Latino communities tend to marry others with similar genetic backgrounds, which affects their ancestry over generations.
Methodology
The study used 104 ancestry informative markers to examine spouse correlations in genetic ancestry among Mexican and Puerto Rican pairs.
Potential Biases
Potential biases may arise from socioeconomic status and geographic heterogeneity.
Limitations
The study may not account for all non-genetic factors influencing mate selection.
Participant Demographics
Participants included Mexican and Puerto Rican spouse pairs, with a total of 285 Mexican pairs and 377 Puerto Rican pairs.
Statistical Information
P-Value
p<0.05
Confidence Interval
95% confidence interval provided for various ancestry correlations.
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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