Fig. 4From: Matrix-assisted laser desorption/ionization time of flight mass spectrometry for comprehensive indexing of East African ixodid tick speciesPhylogenetic relationship of 11 reference (NCBI) and 36 study ticks based on their COI gene sequences, illustrated as a maximum likelihood phylogenetic tree. Accentuated in green are top matching GenBank reference sequences. Asterisks (*) indicate non-consensus sequences. Scale: The bar length corresponds to 0.03 % (20 nt) difference in nucleotide sequence. Ref: Reference tick used to design SSpBack to article page