Story perspectives

New Ancestry Method Enhances Genetic Testing Accuracy

10/7/2025

Summary

Story summary

Researchers at Texas Children's Neurological Research Institute and Baylor College of Medicine report local ancestry inference (LAI) to improve testing accuracy, published in Nature Communications.
LAI segments genomes by ancestry to refine allele frequencies for admixed populations, notably African/African American and Latino/Admixed American groups.
Over 80% of sites in these populations show higher frequencies in ancestry-specific segments, reducing misclassification.

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Story summary

Researchers at Texas Children's Neurological Research Institute and Baylor College of Medicine report local ancestry inference (LAI) to improve testing accuracy, published in Nature Communications.
LAI segments genomes by ancestry to refine allele frequencies for admixed populations, notably African/African American and Latino/Admixed American groups.
Over 80% of sites in these populations show higher frequencies in ancestry-specific segments, reducing misclassification.