Abstract
Mitochondrial DNA codes for enzymes involved in the cellular energetic pathway. The polymorphism of this genome has been extensively analyzed for disease associations, but can also be used to characterize anthropological distances between populations. This study presents the results of mitochondrial DNA (mtDNA) sequence variation for a population sample of 50 unrelated individuals originating from western Algeria. The samples were studied with the recently developed long PCR technique followed by RFLP analysis using six restriction endonucleases: HpaI, BamHI, HaeII, MspI, AvaII and HincII One new morph for HpaI (named Hpal-9 Alg) was detected, and was found to be derived from the combination of the already known morphs 3 and 4. mtDNA restriction endonuclease fragment patterns were analyzed for potential site gain or loss and classified into 18 mtDNA types by the sequence-comparison method. Three mtDNA types (97 Alg; 2-1-7-1-1, 98 Alg; 2-1-1-8-37 and 99 Alg; 9 Alg-1-1-1-3) were detected for the first time. Another mtDNA marker — the presence of the 9 by deletion in the COII/tRNA Lys region - was also studied in the Algerian sample. No deletions were observed. Our results indicate that the Algerians are genetically related to the Israeli-Arab population, with certain characteristics found in southern Europeans and others found in sub-Saharan Africans.
Published Version
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