Inheritance of tooth size in Australian Aboriginals
Version of Record online: 3 MAY 2005
Copyright © 1978 Wiley-Liss, Inc., A Wiley Company
American Journal of Physical Anthropology
Volume 48, Issue 3, pages 305–314, March 1978
How to Cite
Townsend, G. C. and Brown, T. (1978), Inheritance of tooth size in Australian Aboriginals. Am. J. Phys. Anthropol., 48: 305–314. doi: 10.1002/ajpa.1330480306
- Issue online: 3 MAY 2005
- Version of Record online: 3 MAY 2005
- Tooth size;
- Australian Aboriginals;
- Sex chromosomes
The purpose of this study was to clarify the question of inheritance of tooth size, with particular reference to the role of the sex chromosomes. Data were obtained from the dental casts of Aboriginals living at Yuendumu in the Northern Territory of Australia, who had participated in a longitudinal growth study extending over 20 years. The compilation and verification of comprehensive genealogical records gathered over a number of years enabled the analysis of family data.
Product-moment correlation coefficients between different full-sibling and half-sibling pairs were calculated for permanent tooth size. Values of individual and average correlations for both mesiodistal and buccolingual tooth diameters conformed with the theoretical correlations expected assuming polygenic inheritance. However, no evidence of sex chromosomal involvement was found.