Genetic admixture, self-reported ethnicity, self-estimated admixture, and skin pigmentation among hispanics and native americans

Yann C. Klimentidis, Geoffrey F. Miller, Mark Shriver

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

The relationship between ethnicity and biology is of interest to anthropologists, biomedical scientists, and historians in understanding how human groups are constructed. Ethnic self-identification in recently admixed groups such as Hispanics, African Americans, and Native Americans (NA) is likely to be complex due to the heterogeneity in individual admixture proportions and social environments within these groups. This study examines the relationships between self-identified ethnicity, self-estimated admixture proportions, skin pigmentation, and genetic marker estimated admixture proportions. These measures were assessed using questionnaires, skin color measurements, and genotyping of a panel of 76 ancestry informative markers, among 170 Hispanics and NAs from New Mexico, a state known for its complex history of interactions between people of NA and European (EU) ancestry. Results reveal that NAs underestimate their degree of EU admixture, and that Hispanics underestimate their degree of NA admixture. Within Hispanics, genetic-marker estimated admixture is better predicted by forehead skin pigmentation than by self-estimated admixture. We also find that Hispanic individuals self-identified as ''half-White, half Hispanic'' and ''Spanish'' have lower levels of NA admixture than those self-identified as ''Mexican'' and ''Mexican American.'' Such results highlight the interplay between culture and biology in how individuals identify and view themselves, and have implications for how ethnicity and disease risk are assessed in a medical setting.

Original languageEnglish (US)
Pages (from-to)375-383
Number of pages9
JournalAmerican Journal of Physical Anthropology
Volume138
Issue number4
DOIs
StatePublished - Apr 1 2009

Fingerprint

Skin Pigmentation
North American Indians
Hispanic Americans
ethnicity
biology
Genetic Markers
Group
historian
Forehead
Mexico
Social Environment
Disease
African Americans
questionnaire
history
interaction

All Science Journal Classification (ASJC) codes

  • Anatomy
  • Anthropology

Cite this

@article{583b239b60554dcf808225918ae0704d,
title = "Genetic admixture, self-reported ethnicity, self-estimated admixture, and skin pigmentation among hispanics and native americans",
abstract = "The relationship between ethnicity and biology is of interest to anthropologists, biomedical scientists, and historians in understanding how human groups are constructed. Ethnic self-identification in recently admixed groups such as Hispanics, African Americans, and Native Americans (NA) is likely to be complex due to the heterogeneity in individual admixture proportions and social environments within these groups. This study examines the relationships between self-identified ethnicity, self-estimated admixture proportions, skin pigmentation, and genetic marker estimated admixture proportions. These measures were assessed using questionnaires, skin color measurements, and genotyping of a panel of 76 ancestry informative markers, among 170 Hispanics and NAs from New Mexico, a state known for its complex history of interactions between people of NA and European (EU) ancestry. Results reveal that NAs underestimate their degree of EU admixture, and that Hispanics underestimate their degree of NA admixture. Within Hispanics, genetic-marker estimated admixture is better predicted by forehead skin pigmentation than by self-estimated admixture. We also find that Hispanic individuals self-identified as ''half-White, half Hispanic'' and ''Spanish'' have lower levels of NA admixture than those self-identified as ''Mexican'' and ''Mexican American.'' Such results highlight the interplay between culture and biology in how individuals identify and view themselves, and have implications for how ethnicity and disease risk are assessed in a medical setting.",
author = "Klimentidis, {Yann C.} and Miller, {Geoffrey F.} and Mark Shriver",
year = "2009",
month = "4",
day = "1",
doi = "10.1002/ajpa.20945",
language = "English (US)",
volume = "138",
pages = "375--383",
journal = "American Journal of Physical Anthropology",
issn = "0002-9483",
publisher = "Wiley-Liss Inc.",
number = "4",

}

Genetic admixture, self-reported ethnicity, self-estimated admixture, and skin pigmentation among hispanics and native americans. / Klimentidis, Yann C.; Miller, Geoffrey F.; Shriver, Mark.

In: American Journal of Physical Anthropology, Vol. 138, No. 4, 01.04.2009, p. 375-383.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Genetic admixture, self-reported ethnicity, self-estimated admixture, and skin pigmentation among hispanics and native americans

AU - Klimentidis, Yann C.

AU - Miller, Geoffrey F.

AU - Shriver, Mark

PY - 2009/4/1

Y1 - 2009/4/1

N2 - The relationship between ethnicity and biology is of interest to anthropologists, biomedical scientists, and historians in understanding how human groups are constructed. Ethnic self-identification in recently admixed groups such as Hispanics, African Americans, and Native Americans (NA) is likely to be complex due to the heterogeneity in individual admixture proportions and social environments within these groups. This study examines the relationships between self-identified ethnicity, self-estimated admixture proportions, skin pigmentation, and genetic marker estimated admixture proportions. These measures were assessed using questionnaires, skin color measurements, and genotyping of a panel of 76 ancestry informative markers, among 170 Hispanics and NAs from New Mexico, a state known for its complex history of interactions between people of NA and European (EU) ancestry. Results reveal that NAs underestimate their degree of EU admixture, and that Hispanics underestimate their degree of NA admixture. Within Hispanics, genetic-marker estimated admixture is better predicted by forehead skin pigmentation than by self-estimated admixture. We also find that Hispanic individuals self-identified as ''half-White, half Hispanic'' and ''Spanish'' have lower levels of NA admixture than those self-identified as ''Mexican'' and ''Mexican American.'' Such results highlight the interplay between culture and biology in how individuals identify and view themselves, and have implications for how ethnicity and disease risk are assessed in a medical setting.

AB - The relationship between ethnicity and biology is of interest to anthropologists, biomedical scientists, and historians in understanding how human groups are constructed. Ethnic self-identification in recently admixed groups such as Hispanics, African Americans, and Native Americans (NA) is likely to be complex due to the heterogeneity in individual admixture proportions and social environments within these groups. This study examines the relationships between self-identified ethnicity, self-estimated admixture proportions, skin pigmentation, and genetic marker estimated admixture proportions. These measures were assessed using questionnaires, skin color measurements, and genotyping of a panel of 76 ancestry informative markers, among 170 Hispanics and NAs from New Mexico, a state known for its complex history of interactions between people of NA and European (EU) ancestry. Results reveal that NAs underestimate their degree of EU admixture, and that Hispanics underestimate their degree of NA admixture. Within Hispanics, genetic-marker estimated admixture is better predicted by forehead skin pigmentation than by self-estimated admixture. We also find that Hispanic individuals self-identified as ''half-White, half Hispanic'' and ''Spanish'' have lower levels of NA admixture than those self-identified as ''Mexican'' and ''Mexican American.'' Such results highlight the interplay between culture and biology in how individuals identify and view themselves, and have implications for how ethnicity and disease risk are assessed in a medical setting.

UR - http://www.scopus.com/inward/record.url?scp=63449104290&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=63449104290&partnerID=8YFLogxK

U2 - 10.1002/ajpa.20945

DO - 10.1002/ajpa.20945

M3 - Article

C2 - 18951390

AN - SCOPUS:63449104290

VL - 138

SP - 375

EP - 383

JO - American Journal of Physical Anthropology

JF - American Journal of Physical Anthropology

SN - 0002-9483

IS - 4

ER -