Fig. 1
From: mtDNA “nomenclutter” and its consequences on the interpretation of genetic data
Schematic illustration of human mtDNA phylogeny from PhyloTree build 17 (after van Oven 2015). The figure showcases the complexity in nomenclature as can be seen for example in how single capital letter haplogroups M, N, R, and A are nestled within two-character-long haplogroup L3