Figure 1From: Mitochondrial DNA sequence variation and neurodegenerationMitochondrial DNA (MtDNA) haplogroup migration patterns (modified from Shriver and Kittles). The map shows the migration patterns of the main mtDNA haplogroups. The first common ancestor is postulated to have lived in Africa about 200,000 years ago. From Africa, the arrows show the mtDNA migration routes [62].Back to article page