Table 1.
Reports of cetacean species infected by the digenean Pholeter gastrophilus.
Fig 1.
Geographical sampling of the digenean Pholeter gastrophilus.
Sampling sites of the digenean Pholeter gastrophilus, identified by regions and host species. The map has been modified from a NASA image made by Reto Stockli, NASA's Earth Observatory Team, using data provided by the MODIS Land Science Team.
Table 2.
Information on the specimens of the digenean Pholeter gastrophilus used for this study.
Fig 2.
Analysis for the phylogenetic relationships inferred from the mtND1 and mtCOI sequences of 68 individuals of the digenean Pholeter gastrophilus, collected from seven host species and four geographical regions. Support values for each node were calculated as ML bootstrap after 1000 replicates. Sequences are labelled according to their sampling localities as follows: central eastern Atlantic, CEA (Canary Islands, CI; Galicia North-West Spain, Gal; Strait of Gibraltar, SoG); Mediterranean Sea, Med (Alboran Sea, AS; western Mediterranean, WM); north eastern Atlantic, NEA (Celtic Sea, CS; North Sea, NS); south western Atlantic, SWA.
Fig 3.
Minimum Spanning network for the 16 haplotypes identified for the digenean Pholeter gastrophilus in this study. Each haplotype is labelled according to corresponding numbers in Table 3. Lines located transversally to connecting branches represent the number of base pair changes between haplotypes. Size and colour of circles match the information at the bottom-left side of the figure.
Table 3.
GenBank accession numbers of haplotypes identified for the digenean Pholeter gastrophilus.
Table 4.
Genetic diversity indices for the digenean Pholeter gastrophilus.
Fig 4.
Isolation by distance analysis.
Graphical representation of the isolation by distance analysis among populations of the digenean Pholeter gastrophilus. The relationship between pairwise genetic distance (ΦST) and geographical distance (nm) between sampling sites are shown. Triangles represent comparisons of samples from the south western Atlantic (SWA); squares represent comparison of samples with the Mediterranean Sea (Med) and the central eastern Atlantic (CEA); and circles represent comparison of samples with the north eastern Atlantic (NEA).
Table 5.
Analysis of Molecular Variance (AMOVA) of sequences of mtND1 and mtCOI from 68 individuals of the digenean Pholeter gastrophilus.
Fig 5.
Mismatch distribution curve for the digenean Pholeter gastrophilus showing the expected (dashed line) and the observed values (continuous line) under the expanding population model. The time of expansion in units of mutational time (τ) and the Harpending’s Raggedness Index (r) are shown.