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Inheritance of tooth size in Australian Aboriginals
Author(s) -
Townsend Grant C.,
Brown Tasman
Publication year - 1978
Publication title -
american journal of physical anthropology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.146
H-Index - 119
eISSN - 1096-8644
pISSN - 0002-9483
DOI - 10.1002/ajpa.1330480306
Subject(s) - inheritance (genetic algorithm) , sibling , genealogy , biology , demography , statistics , evolutionary biology , mathematics , genetics , history , psychology , sociology , developmental psychology , gene
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.