OBJECTIVETo investigate the sequence polymorphism of mtDNA HV1,HV2 overlapping fragments and coding region encompassing position 8430-8673 in Hebei Han population.

METHODSPolymerase chain reaction-single strand conformation polymorphism (PCR-SSCP) combined with sequencing method was used to detect the haplotype distribution of mtDNA in 100 Hebei Han individuals.

RESULTSNinety-one haplotypes were noted in 100 unrelated individuals. The gene diversity is 0.9985 and the random match probability is 0.0115. Compared with the Anderson sequence, 65 sites of different nucleotide sequences were noted, of which 44 sites were previously registered in MITOMAP, 12 sites were not registered and the gene mutations were different from MITOMAP at 9 positions.

CONCLUSIONThe obtained data suggest that these loci are valuable genetic markers for personal identification and thus could be used as basic data for the forensic application of mtDNA in Hebei province.