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Table 1 Inherited and epigenetic mtDNA variability. The number of subjects classified within a specific haplogroup is reported together with the number of subjects showing heteroplasmy levels higher than 5%. MtDNA haplogroups are classified according to Torroni et al., [27].

From: The mitochondrial DNA control region shows genetically correlated levels of heteroplasmy in leukocytes of centenarians and their offspring

MtDNA Haplogroup Centenarians Controls
  Absolute frequency Heteroplasmic subjects Absolute frequency Heteroplasmic subjects
H 35 15 34 10
I 2 2 0 0
J 11 8 17 7
K 10 6 16 6
T 6 3 10 3
U 13 7 11 4
V 1 1 1 0
W 2 1 4 3
X 9 8 5 3
Other 11 4 16 6
Total 100 55 114 47