| POLCEROVÁ, Lenka, Richard L. JANTZ, Miroslav KRÁLÍK, Mária CHOVANCOVÁ and Martin ČUTA. Sex differences in radioulnar contrasts of the finger ridge counts across 21 human population samples. Annals of Human Biology. Taylor and Francis Ltd., 2023, vol. 50, No 1, p. 370-389. ISSN 0301-4460. Available from: https://dx.doi.org/10.1080/03014460.2023.2247970. |
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@article{2305218,
author = {Polcerová, Lenka and Jantz, Richard L. and Králík, Miroslav and Chovancová, Mária and Čuta, Martin},
article_number = {1},
doi = {http://dx.doi.org/10.1080/03014460.2023.2247970},
keywords = {Dermatoglyphics; Finger Ridge count; radioulnar contrasts; sex differences; prenatal development},
language = {eng},
issn = {0301-4460},
journal = {Annals of Human Biology},
title = {Sex differences in radioulnar contrasts of the finger ridge counts across 21 human population samples},
url = {https://www.tandfonline.com/doi/full/10.1080/03014460.2023.2247970},
volume = {50},
year = {2023}
}
TY - JOUR
ID - 2305218
AU - Polcerová, Lenka - Jantz, Richard L. - Králík, Miroslav - Chovancová, Mária - Čuta, Martin
PY - 2023
TI - Sex differences in radioulnar contrasts of the finger ridge counts across 21 human population samples
JF - Annals of Human Biology
VL - 50
IS - 1
SP - 370-389
EP - 370-389
PB - Taylor and Francis Ltd.
SN - 03014460
KW - Dermatoglyphics
KW - Finger Ridge count
KW - radioulnar contrasts
KW - sex differences
KW - prenatal development
UR - https://www.tandfonline.com/doi/full/10.1080/03014460.2023.2247970
N2 - Aim: The aim of the present study was to demonstrate the existence of uniform sexual dimorphism in some radioulnar contrasts between different finger ridge counts within the same hand in a large set of populations, thus confirming the universal nature of this dimorphism in humans.Subjects and methods: We analysed individual finger ridge counts (10 values on each hand) of both hands from archival sources (mainly the Brehme-Jantz database). In total, these included 4412 adults from 21 population samples covering all permanently inhabited continents and encompassing very different and geographically distant human populations. We calculated the contrasts (differences) of all pairs of ridge counts (45 per hand) and used diverse methods to assess the direction and degree of dimorphism of them across all population samples.Results: The highest sexual dimorphism was observed for nine contrasts involving the ridge count of the dermatoglyphic pattern on the radial side of the second finger of the right hand (R2r). Among these contrasts, we then found four that had the same direction of dimorphism in all 21 populations. The most dimorphic was the contrast R1rR2r – the difference between the ridge count of the radial side of the thumb and the radial side of the index finger.Discussion: Thus, these dermatoglyphic traits can be further investigated as potential markers of prenatal sex differentiation from ca. 10th week of intrauterine development. However, it will be useful to address the detailed factors and mechanisms for differences in the degree of dimorphism of these traits in different populations.
ER -
POLCEROVÁ, Lenka, Richard L. JANTZ, Miroslav KRÁLÍK, Mária CHOVANCOVÁ and Martin ČUTA. Sex differences in radioulnar contrasts of the finger ridge counts across 21 human population samples. \textit{Annals of Human Biology}. Taylor and Francis Ltd., 2023, vol.~50, No~1, p.~370-389. ISSN~0301-4460. Available from: https://dx.doi.org/10.1080/03014460.2023.2247970.
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