Admixture in Hispanics: Distribution of Ancestral Population Contributions in the Continental United States

Document Type

Article

Authors

Bernardo Bertoni, Departamento de Genética, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay.
Bruce Budowle, Laboratory Division, Federal Bureau of Investigation Academy, Quantico, VA 20535.
Mónica Sans, Sección de Antropología Biológica, Facultad de Humanidades y Ciencias de la Educación Magallanes, Montevideo, Uruguay.
Sara A. Barton, Human Genetics Center, School of Public Health, University of Texas, Houston, TX 77225.
Ranajit Chakraborty, Center for Genome Information, Department of Environmental Health, University of Cincinnati, Cincinnati, OH 45267-0056.

Abstract

The effect of gene flow on Hispanic populations from different geographic regions of the United States was analyzed using six autosomal DNA markers (LDLR, GYPA, HBGG, D7S8, GC, and HLA-DQA). By region of sampling, the Hispanic populations showed different ancestry contributions, from a trihybrid structure with European, Native American, and African contributions (California, Nevada, Florida, New Jersey, and Virginia) to a dihybrid structure with European and American contributions (Southwest population) or European and African contributions (Pennsylvania and Southeast population). These findings allowed us to define two regional groups, the West and the East. In the former, Native American contributions ranged from 35.58% to 57.87%; in the East region the values ranged from 0% to 21.27%. An African influence was similar in both regions, ranging from 0% to 17.11%, with a tendency of increasing in the East region. These data reflect the different origins of the Hispanic populations that led to the present ones. In the West, Hispanics are mostly of Mexican origin, and in the East, they are predominantly of Cuban and Puerto Rican origin.

Recommended Citation

Bertoni, Bernardo; Budowle, Bruce; Sans, Mónica; Barton, Sara A.; and Chakraborty, Ranajit (2003) "Admixture in Hispanics: Distribution of Ancestral Population Contributions in the Continental United States," Human Biology: Vol. 75: Iss. 1, Article 1.
Available at: https://digitalcommons.wayne.edu/humbiol/vol75/iss1/1