Figure 3.

MJ network of mtDNA haplotypes. Breeds are colour-coded as follows: Alentejana (orange), Algarvia (red), Garvonesa (blue), Mertolenga (brown), Preta (green) and Limousin (black); circle sizes are proportional to haplotype frequencies; major haplogroups are indicated by coloured shadows: European T3 (red), African-derived T1a (orange) and ancestral Mediterranean Q (brown); mutated nt positions that differentiate haplogroups are also shown; theoretical median vectors are represented by grey dots