Phylogenetic network of mtDNA haplogroup V in patients with diabetes and controls. Red nodes, patients with diabetes (N = 10); white nodes, population controls (N = 27). Inside the nodes, cases identified by numbers 1–10; controls numbered as previously published . Fast evolving sites m.303, m.311 and m.16519 were not included in the network. Outgroup, an African sequence [GenBank:AF346980]; CRS, the revised Cambridge Reference Sequence [GenBank:NC_012920]. Unless marked otherwise, mtDNA variants are transitions. Superscripts indicate transversions, inserted or deleted nucleotides: i = insertion, @ = back mutation, * = heteroplasmic mutation.