Izvorni znanstveni članak
Inheritance of Dermatoglyphic Asymmetry and Diversity Traits in Twins Based on Factor: Variance Decomposition Analysis
Bibha Karmakar
; Indian Statistical Institute, Biological Anthropology Unit, Kolkata, India
Ida Malkin
; Tel Aviv University, Sackler Faculty of Medicine, Department of Anatomy and Anthropology, Human Population Biology Unit,
Eugene Kobyliansky
; Tel Aviv University, Sackler Faculty of Medicine, Department of Anatomy and Anthropology, Human Population Biology Unit,
Sažetak
Dermatoglyphic asymmetry and diversity traits from a large number of twins (MZ and DZ) were analyzed based on principal factors to evaluate genetic effects and common familial environmental influences on twin data by the use of maximum likelihood-based Variance decomposition analysis. Sample consists of monozygotic (MZ) twins of two sexes (102 male pairs and 138 female pairs) and 120 pairs of dizygotic (DZ) female twins. All asymmetry (DA and FA) and diversity of dermatoglyphic traits were clearly separated into factors. These are perfectly corroborated with the earlier studies 1–3 in different ethnic populations, which indicate a common biological validity perhaps exists of the underlying component structures of dermatoglyphic characters. Our heritability result in twins clearly showed that DA_F2 is inherited mostly in dominant type (28.0%) and FA_F1 is additive (60.7%), but no significant difference in sexes was observed for these factors. Inheritance is also very prominent in diversity Factor 1, which is exactly corroborated with our previous
findings4. The present results are similar with the earlier results of finger ridge count diversity in twin data5, which suggested that finger ridge count diversity is under genetic control.
Ključne riječi
dermatoglyphic asymmetry and diversity; variance decomposition analysis; twins
Hrčak ID:
104613
URI
Datum izdavanja:
1.7.2013.
Posjeta: 964 *