Genetic variations among three major ethnic groups in Nigeria using RAPD

Area of Science:

• Genetics
• Molecular Biology
• Anthropology

Background:

• Human genetic diversity is influenced by inheritance, geography, and environment.
• Distinguishing between ethnic groups can be achieved through genetic markers.
• Nigeria's diverse ethnic landscape presents a unique case for genetic studies.

Purpose of the Study:

• To investigate the feasibility of developing a cost-effective and user-friendly genetic marker for differentiating Nigerian ethnic groups.
• To utilize Random Amplified Polymorphic DNA-Polymerase Chain Reaction (RAPD-PCR) for ethnic identification.
• To analyze DNA polymorphism patterns among major Nigerian ethnic groups.

Main Methods:

• DNA was isolated from blood samples of 18 individuals representing three major Nigerian ethnic groups.
• Random Amplified Polymorphic DNA-Polymerase Chain Reaction (RAPD-PCR) was performed using five selected primers.
• Gel electrophoresis was used to visualize DNA fragments, and genetic similarity was assessed through band polymorphism analysis and phylogenetic tree construction.

Main Results:

• Three of the five RAPD primers exhibited significant polymorphisms.
• Specific DNA bands were identified as potential ethnic markers, with certain bands showing high frequency within the Hausa ethnic group.
• While some primers showed common bands across groups, others revealed ethnic-specific patterns, such as bands at 471 and 435 bp for Hausa individuals.

Conclusions:

• Random Amplified Polymorphic DNA-Polymerase Chain Reaction (RAPD-PCR) shows promise for developing ethnic-specific genetic markers.
• The study provides initial insights into the potential of RAPD primers for distinguishing between Nigerian ethnic groups.
• Further research with optimized primers could lead to reliable genetic tools for ethnic identification.