Mitochondrial DNA sequences of the hypervariable regions HV1 and HV2 were determined for 1204 unrelated Japanese individuals. A total of 741 different mtDNA haplotypes were found, 157 of which were seen in multiple individuals. Twenty-seven of these individuals showed point heteroplasmy. The most frequent haplotype (16223T-16362C-73G-263G-315.1C) was found in 31 individuals and the second most frequent haplotypes (16129A-16223T- 16362C-73G-152C-263G-309.1C-315.1C) was found in 24 individuals. The haplotypes diversity and random match probability were calculated to be 0.9969 and 0.0040, respectively.
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