Science
Ethiopian DNA Study Maps Forensic Markers in Addis Ababa
Bioengineer.org · yesterday · Read the Full Story on Bioengineer.org
AI SUMMARY
Researchers have generated a comprehensive genetic reference database of 24 short tandem repeat loci for 605 individuals in Addis Ababa to improve forensic identification and paternity testing.
- Researchers analyzed 24 autosomal short tandem repeat loci in 605 unrelated individuals from Addis Ababa to build a genetic reference database.
- The study was published in the Egyptian Journal of Forensic Sciences and led by a team including Feifei Gao, Abiy Wendifraw Assefa, and Chunxia Yan.
- Participants included 440 females and 165 males, comprising 401 individuals of Oromo ethnicity, 199 of Amhara ethnicity, and five with unspecified ethnicity.
- Samples were collected from healthy volunteers at the Addisu Gebeya Health Centre who were associated with the Ethiopian Red Cross Society.
- A total of 378 distinct alleles were observed across the 24 STR loci, with allele frequencies ranging from 0.0008 to 0.4678.
- The SE33 locus showed the highest number of alleles at 45, while D13S317 showed the fewest at 8.
- The combined power of discrimination for all 24 loci was greater than 0.999999999, and the combined match probability was 3.33707 × 10−19.
- Phylogenetic reconstruction indicated that the Addis Ababa population is genetically close to African and African-descendant populations, particularly Sudan and Colombia-African.
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