Öz
Dermatoglyphics are polygenic markers useful in studying population dynamics. The digital and palmar ridge pattern characteristics of 390 subjects of Ijaw ethnicity were evaluated using standard methods. The most prevalent digital ridge pattern type was ulnar loops followed by whorls, arches and the least prevalent was radial loops. Gender dimorphism was not observed with digital ridge pattern types. However, females showed significantly greater atd angle than males (p < 0.05) while males had a greater Pattern Intensity Index. No significant gender disparity was seen in total finger ridge count and a-b ridge count. We compared our findings to those of other populations previously studied.
Keywords: Dermatoglyphics, Ijaw, Niger Delta, Nigeria.
Résumé
Les dermatoglyphiques sont des marqueurs polygéniques utiles dans l’étude du dynamisme de la population. Les caractéristiques des fréquences des rides digitales et de la palme de 390 individus de l’ethnie d’Ijaw étaient évaluées utilisant des méthodes standard. Le type de ride digitale le plus prévalent était les loupes ulnaire suivi des arches et le moins prévalent était
les loupes radiales. Le dimorphisme du gendre n’était pas observe avec les types de fréquence de rides digitales. Cependant les femelles démontraient significativement un angle plus élevé que les hommes (p < 0.05) alors que les hommes avaient une plus grande fréquence d’un indexe d’intensité. Il n’y a avait pas de disparité significative entre gendre chez toutes les rides des doigts vus. Nous avons compare nos résultats à ceux d’autres populations étudiés.
Correspondence: Dr. B.N.R. Jaja, Department of Surgery, University of Port Harcourt Teaching Hospital, PMB
6173, Port Harcourt, Rivers State, Nigeria.
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