Gene flow and variation in stature and craniofacial dimensions among indigenous populations of southern Mexico, Guatemala, and Honduras

American Journal of Physical Anthropology
Bertis B Little, R M Malina

Abstract

Populations with histories of outbreeding tend to be taller even in the face of seemingly unchanged health and nutritional circumstances, while inbreeding generally results in a negative correlation between body dimensions and level of inbreeding. Populations that have experienced a positive secular trend in stature and maturation typically have histories of higher outbreeding rates in combination with improved nutritional, health, and economic conditions, suggesting a genetic-environment interaction. In general, Middle American Indians have not experienced a secular trend in stature, nor a substantial increase in their standard of living, but they have experienced varying degrees of admixture with Spanish and African populations since the Spanish Conquest. The relationship between estimated gene flow and variation in several anthropometric dimensions is thus considered in indigenous Mesoamerican populations. Available data on height, sitting height, craniofacial dimensions, and admixture rate of Indian populations from southern Mexico, Guatemala, and Honduras were assembled from the literature. The population mean data on 3,371 adults from 23 populations for males and 18 for females were analyzed by regression with anthropomet...Continue Reading

References

Jan 1, 1977·Annals of Human Biology·E Kobyliansky, B Arensburg
Jan 1, 1970·American Journal of Physical Anthropology·R P EricksonA K Romney
Jan 1, 1967·American Journal of Physical Anthropology·E Schreider
Jan 1, 1968·Scientific American·J M Tanner
May 1, 1984·Annals of Human Genetics·G Livshits, E Kobyliansky
Jun 1, 1982·American Journal of Physical Anthropology·J M McCullough

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Citations

Nov 13, 2008·American Journal of Physical Anthropology·Brigitte M Holt, Vincenzo Formicola
Oct 9, 2003·American Journal of Physical Anthropology·Brigitte M Holt
Feb 18, 2006·American Journal of Physical Anthropology·Bertis B LittleRobert M Malina

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