Simian crease polymorphism among fifteen Iranian endogamous groups

Area of Science:

• Anthropology
• Human Genetics
• Dermatoglyphics

Background:

• Palmar creases, specifically the simian crease, are valuable in population genetics and anthropology.
• Previous research indicates variations in palmar crease patterns across different ethnic groups.

Purpose of the Study:

• To analyze palmar crease types in 15 Iranian endogamous groups.
• To investigate variations in palmar crease patterns within and between these populations.
• To compare Iranian palmar crease frequencies with other global populations.

Main Methods:

• Analysis of palmar crease types using Bhanu's (1973) simian crease classification.
• Study involved 3266 individuals from 15 distinct Iranian endogamous groups.
• Examination of pattern frequency and lateral symmetry.

Main Results:

• Little evidence of significant differences between sexes or hands regarding palmar crease types.
• Considerable variation observed in pattern frequency and lateral symmetry among the studied Iranian populations.
• Iranian populations exhibit low frequencies of transitional and simian crease types compared to other populations.

Conclusions:

• Palmar crease patterns in Iranian populations show significant intra-group variation but limited inter-sex/hand differentiation.
• The low frequency of transitional and simian creases is a characteristic feature of Iranian populations.
• Further research can explore the genetic and evolutionary factors influencing these dermatoglyphic patterns.