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Modern European cranial variables and blood polymorphisms show comparable spatial patterns.

R M Harding1

  • 1Department of Ecology and Evolution, State University of New York, Stony Brook 11794-5245.

Human Biology
|December 1, 1990
PubMed
Summary

Modern cranial traits and blood polymorphisms share similar spatial patterns in European populations. This suggests comparable population processes influenced both genetic and physical human variations across the continent.

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Area of Science:

  • Anthropology
  • Population Genetics
  • Bioarchaeology

Background:

  • Understanding spatial patterns of human variation is crucial for inferring population processes.
  • Previous studies (Sokal et al., 1989) established spatial patterns for blood polymorphisms in European populations.

Purpose of the Study:

  • To compare spatial patterns of modern European cranial traits with those of blood polymorphisms.
  • To investigate if similar population processes shaped both cranial and genetic variations.

Main Methods:

  • Analysis of spatial patterns using one-dimensional and directional autocorrelation correlograms.
  • Clustering of variables based on Manhattan distances of one-dimensional correlograms.
  • Comparison of clustering results between cranial traits and various blood polymorphisms (red cell antigens, HLA, non-HLA).

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Main Results:

  • One-dimensional correlograms for cranial traits showed no significant contrast with red cell antigens or non-HLA blood polymorphisms.
  • Directional correlogram cluster analysis revealed that cranial traits reflect patterns comparable to blood polymorphisms.
  • The Human Leukocyte Antigen (HLA) system was the only significant contrast among one-dimensional correlograms.

Conclusions:

  • Spatial patterns in modern European cranial traits are influenced by similar population processes as blood polymorphisms.
  • This finding supports a shared demographic history affecting both physical and genetic human variation.
  • The study discusses implications for the origin of northwest-southeast clines in modern traits.