Dermatoglyphs in the Southern Nigerian population

Area of Science:

• Anthropology
• Genetics
• Forensic Science

Background:

• Dermatoglyphics, the study of skin patterns, offers insights into human population genetics.
• Previous research suggested low total ridge counts (TRC) as a characteristic negroid dermatoglyphic trait.

Purpose of the Study:

• To analyze dermatoglyphic features in a Southern Nigerian population.
• To compare these features with other racial groups and re-evaluate established dermatoglyphic traits.

Main Methods:

• Analysis of fingerprint patterns, digital and total ridge counts (TRC), a-b scores, and atd angles.
• Comparison of dermatoglyphic data between 200 males and 200 females.
• Statistical comparison with existing data from other populations, including the Zulu.

Main Results:

• Southern Nigerian females exhibited a higher frequency of arches than males, consistent with other populations.
• A significant sex difference was observed in the atd angle, similar to the Zulu population.
• Southern Nigerians showed a significantly higher TRC than previously reported for the Zulu, contradicting earlier findings.

Conclusions:

• The study challenges the notion that low TRC is a defining dermatoglyphic trait for negroid populations.
• Dermatoglyphic variations exist within and between populations, necessitating further research.
• Findings contribute to a more nuanced understanding of human population genetics through dermatoglyphics.