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The genetics of shovel shape in maxillary central incisors in man
Author(s) -
Blanco Rafael,
Chakraborty Ranajit
Publication year - 1976
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.1330440204
Subject(s) - shovel , maxillary central incisor , trait , biology , maxillary incisor , orthodontics , evolutionary biology , incisor , medicine , computer science , agronomy , programming language
Abstract From dental casts of 94 parent‐offspring and 127 full‐sib pairs, sampled from two Chilean populations, shovelling indices are computed to measure the degree of shovelling of maxillary central incisors quantitatively. Genetic correlations are computed to determine the role of genetic factors in explaining the variation in this trait. Assuming only hereditary factors to be responsible for the transmission of shovel shape, 68% of total variability is ascribed to the additive effect of genes.