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Fig. 1 | Parasites & Vectors

Fig. 1

From: Occurrence and distribution of Giardia species in wild rodents in Germany

Fig. 1

Bayesian phylogenetic analysis of unique SSU rDNA sequence fragments. Sequences of representative samples are shown and number of samples with identical sequences is given in brackets. Maximum likelihood analysis based on PhyML resulted in similar trees (not shown). a Unrooted phylogenetic tree comprised of 106 unique SSU rDNA sequences that have been classified as G. microti (purple clade), 10 unique sequences classified as G. muris (blue clade), 5 sequences classified as G. duodenalis (green clade) and 3 sequences classified as O. intestinalis (red clade), a sister lineage of Giardia spp. Reference sequences (GenBank accession numbers) of O. intestinalis, G. muris, G. duodenalis and G. microti are marked in bold. Posterior probabilities ≥ 0.5 are illustrated by black dots (proportionally increasing in size). b Unrooted phylogenetic tree of the 10 unique G. muris sequences and 2 references (GenBank: AF113895, X65063). Only posterior probabilities ≥ 0.5 are highlighted. Rodent species and number of samples from which unique sequences derived are illustrated in color bars (one square size represents one animal). Testing for significant phylogeny-trait correlations within the G. muris subgroup for host distribution clustering using the programme BaTS [51] revealed the following P-values: A. agrarius ≤ 0.001, A. flavicollis = 0.079

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