A family study of dermatoglyphic traits in India

Resolution of genetic and uterine environmental effects for palmar pattern ridge counts

Dados Bibliográficos

ID8317134
AutoresIngrid B Borecki (0000-0002-8657-7964, Washington University in St. Louis), K C Malhotra (Indian Statistical Institute), S Mathew (0009-0009-2509-8394, University of Freiburg), M Vijayakumar (0000-0003-2375-1002, Indian Statistical Institute), D V R Poosha (Andhra University), D C Rao (0009-0006-1075-3470, Washington University in St. Louis)
Ano1985
Volume68
Fascículo3
Páginas417-424
Data de publicação1985-11-01
Peer ReviewedSim
Open AccessSim
TipoARTICLE
PeriódicoAmerican Journal of Physical Anthropology (JOURNAL)
Identificadores do periódicoISSN: 0002-9483 • E-ISSN: 1096-8644
EditoraWiley (PUBLISHER • GB)
DOI10.1002/ajpa.1330680313
PMID4061623
OpenAlexW2084417738
IdiomaEN
Citações recebidas10
Referências citadas10

The inheritance of palmar pattern ridge counts for individual palmar areas, combined distal areas, and all ten areas combined was investigated in families belonging to two strictly endogamous Brahmin castes of peninsular India. Ridge count phenotypes were obtained by the method proposed by Malhotra et al. (1981a), however, zero observations (indicating patterns not circumscribed by triradii) were excluded from analysis. Path analytic methods were applied in order to determine the relative influences of polygenes, intrauterine environment, and residual environment. The proportion of genetic variation was, in general, consistently greater in one population than the other, and significant intrauterine environmental effects were detected for the population with lower heritabilities. The results of this investigation suggest that a simple polygenic model may not be sufficient to explain the inheritance of ridge counts in the interdigital IV configurational area. Distal pattern ridge counts do not appear to be influenced by more or less uterine environmental effects than all areas considered together. The proportion of genetic variation for the total palmar pattern ridge count was 52% in both populations

Biology · Cartography · Dermatoglyphics · Evolutionary biology · Geography · Ridge · Sociology · Demography · Dermatoglyphics and Human Traits · Genetics