Heritability of deciduous tooth size in Australian aboriginals.
The contributions of genetic and environmental influences to observed variabiliy of deciduous tooth size were quantified in a group of Australian aboriginals. Phenotypic variability was partitioned into four components; between sides, between fathers, between mothers, and between offspring. Results suggested that about 58% of deciduous tooth-size variability was due to additive genetic variance and 15% to common environmental variance. It appears that additive genetic variance is similar in both deciduous and permanent dentitions, but that common maternal effects are more important in determining deciduous tooth-size variability.
D001315:Australia; D005260:Female; D014644:Genetic Variation; D006801:Humans; D008297:Male; D009811:Odontometry; D010641:Phenotype; D014070:Tooth / Q000033:anatomy & histology; D014094:Tooth, Deciduous / Q000033:anatomy & histology*; D000095283:Australian Aboriginal and Torres Strait Islander Peoples