Publication Details

Radioulnar Contrasts in Fingerprint Ridge Counts: Searching for Dermatoglyphic Markers of Early Sex Development

POLCEROVÁ Lenka, CHOVANCOVÁ Mária, KRÁLÍK Miroslav, BEŇUŠ Radoslav, KLÍMA Ondřej, MEINEROVÁ Tereza, ČUTA Martin and PETROVÁ Mária. Radioulnar Contrasts in Fingerprint Ridge Counts: Searching for Dermatoglyphic Markers of Early Sex Development. American Journal of Human Biology, vol. 34, no. 5, 2022, pp. 1-15. ISSN 1520-6300. Available from: https://onlinelibrary.wiley.com/doi/abs/10.1002/ajhb.23695
Czech title
Radioulnární kontrasty v počtech papilárních lišt: Hledání dermatoglyfických markerů raného sexuálního vývoje
Type
journal article
Language
english
Authors
Polcerová Lenka, Mgr. (MUNI)
Chovancová Mária (UNIBA)
Králík Miroslav, doc. RNDr., Ph.D. (MUNI)
Beňuš Radoslav (UNIBA)
Klíma Ondřej, Ing., Ph.D. (DCGM FIT BUT)
Meinerová Tereza (SCI MUNI)
Čuta Martin, Mgr., Ph.D. (MUNI)
Petrová Mária (SCI MUNI)
URL
Keywords

dermatoglyphics, radioulnar contrast, prenatal sex development, fingerprints

Abstract

Objectives 
Using prenatally fixed dermatoglyphics features as markers of prenatal sex development is limited due to insufficient knowledge on their sex differences. This study aims to examine more thoroughly sex
differences in radioulnar contrasts. 

Methods 
Fingerprints of 360 females and 331 males from 4 samples of different ethnic backgrounds (Czechs, Slovaks, Vietnamese and Lusatian Sorbs) were studied. On both hands, finger ridge-counts were recorded, and
all possible radioulnar contrasts were computed as a difference between ridge-count at a radial position minus ridge-count at a respective ulnar position on the hand. Radioulnar contrasts with population-congruent and numerically large dimorphism were selected and the dimorphism of the selected radioulnar contrasts was then tested using nonparametric analysis of variance.

Results 
Greater dimorphism of radioulnar contrasts occurred on the right hand than on the left hand. Population congruent direction and relatively strong dimorphism (Cohen's d greater than 0.3) was found in six radioulnar contrasts on the right hand, all of which involved the radial ridge-count of the 2nd finger. Of these, the highest average dimorphism was observed for the difference between the radial ridge-count of the 2nd finger and the ulnar ridge-count of the 4th finger (2r4u contrast), where the average effect size from all 4 population samples was comparable to a published average effect size of the 2D4D finger length ratio.

Conclusion 
We propose that 2r4u contrast of ridge-counts could serve as a marker of prenatal sexual development targeting a temporally narrow developmental window.

Published
2022
Pages
1-15
Journal
American Journal of Human Biology, vol. 34, no. 5, ISSN 1520-6300
Publisher
WILEY
DOI
10.1002/ajhb.23695
UT WoS
000716535400001
EID Scopus
2-s2.0-85118793128
BibTeX 
@ARTICLE{FITPUB12618,
   author = "Lenka Polcerov\'{a} and M\'{a}ria Chovancov\'{a} and Miroslav Kr\'{a}l\'{i}k and Radoslav Be\v{n}u\v{s} and Ond\v{r}ej Kl\'{i}ma and Tereza Meinerov\'{a} and Martin \v{C}uta and M\'{a}ria Petrov\'{a}",
   title = "Radioulnar Contrasts in Fingerprint Ridge Counts: Searching for Dermatoglyphic Markers of Early Sex Development",
   pages = "1--15",
   journal = "American Journal of Human Biology",
   volume = 34,
   number = 5,
   year = 2022,
   ISSN = "1520-6300",
   doi = "10.1002/ajhb.23695",
   language = "english",
   url = "https://www.fit.vut.cz/research/publication/12618"
}
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