Fig. 2From: Occurrence of Thelazia callipaeda and its vector Phortica variegata in Austria and South Tyrol, Italy, and a global comparison by phylogenetic network analysisMedian-joining haplotype network of the cytochrome c oxidase subunit I gene (COI) sequences (617 nucleotide positions) of Thelazia callipaeda showing the geographical distribution (a) and the reported hosts (b). Circles represent haplotypes; numbers within the circles represent the number of individuals; if no number is shown, then only one individual is represented. Representative GenBank accession numbers of the haplotypes are shown next to the circles; white circles represent intermediate nodes; bars on branches connecting haplotypes represent the number of substitutions; asterisks indicate haplotypes of the individuals obtained in the present studyBack to article page