Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Skin color variation in eastern Nepal.

S Williams-Blangero1, J Blangero

  • 1Department of Genetics, Southwest Foundation for Biomedical Research, San Antonio, Texas 78228.

American Journal of Physical Anthropology
|July 1, 1991
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Differential gene expression study in whole blood identifies candidate genes for psychosis in African American individuals.

Schizophrenia research·2025
Same author

Publisher Correction: Brain charts for the human lifespan.

Nature·2022
Same author

Brain charts for the human lifespan.

Nature·2022
Same author

Genetic differentiation between baboon subspecies: Relevance for biomedical research.

American journal of primatology·2020
Same author

Genetic structure of three populations of rhesus macaques (Macaca mulatta): Implications for genetic management.

American journal of primatology·2020
Same author

The genetic demography of a chimpanzee colony.

American journal of primatology·2020
Same journal

A geometric morphometric assessment of shape variation in adult pelvic morphology.

American journal of physical anthropology·2021
Same journal

Corrigendum: Infanticide in chimpanzees: Taphonomic case studies from Gombe.

American journal of physical anthropology·2021
Same journal

Sexual dimorphism in the size and shape of the non-obstetric pelvis across anthropoids.

American journal of physical anthropology·2021
Same journal

The biological index of frailty: A new index for the assessment of frailty in human skeletal remains.

American journal of physical anthropology·2021
Same journal

Mass violence in Copper Age Europe: The massacre burial site from Potočani, Croatia.

American journal of physical anthropology·2021
Same journal

Skeletal evidence of structural violence among undocumented migrants from Mexico and Central America.

American journal of physical anthropology·2021
See all related articles

Skin color variation in Nepal reveals significant genetic microdifferentiation among ethnic groups. Reflectance measurements show distinct patterns, challenging historical beliefs about group origins and highlighting the complexity of human population genetics.

Area of Science:

  • Human genetics
  • Anthropometry
  • Population biology

Background:

  • Skin color variation is a key human trait influenced by genetics and environment.
  • Understanding population microdifferentiation requires detailed genetic and phenotypic data.
  • Previous ethnohistorical accounts suggested specific admixture patterns in Nepalese groups.

Purpose of the Study:

  • To quantify skin color variation in six endogamous Nepalese groups.
  • To investigate genetic microdifferentiation using skin reflectance data.
  • To compare genetic findings with ethnohistorical claims regarding group origins.

Main Methods:

  • Collected skin reflectance data from 484 males across six ethnic groups in eastern Nepal.
  • Utilized a British DSL Model 99 Reflectance Spectrophotometer with blue, green, and red filters.

Related Experiment Videos

  • Employed multivariate likelihood ratio permutation tests and Mahalanobis distance analysis.

    • Main Results:

    • Significant ethnic differences in skin color were observed at both upper inner arm and forehead sites.
    • Detected differential tanning responses, suggesting genotype-environment interactions.
    • Mahalanobis distance analysis revealed microdifferentiation patterns inconsistent with oral histories.

    Conclusions:

    • Skin color variation provides evidence for genetic microdifferentiation among Nepalese populations.
    • Findings challenge the ethnohistorical belief of Jirel admixture with Sunwars and Sherpas.
    • Reflectometric studies are valuable for population differentiation but require careful interpretation at local levels.