Phylogenetic tree of the Crocidura olivieri complex. Final phylogenetic tree for members of the Crocidura olivieri complex using one specimen per locality and per clade, with 156 individual specimens. Tree built using Bayesian Inference and data from three mitochondrial (16S, cytb and COI) and four nuclear markers (BRCA1, STAT5A, HDAC2 and RIOK3) for a combined total of 5305 bp. Values above branches are Bayesian posterior probabilities. The branchlets are identified by specimen numbers defined in Additional file 6. A simplified representation of the tree is shown in the upper framed window (Sgl = singleton).