Phylogeographical Studies of Ascaris spp. Based on Ribosomal and Mitochondrial DNA Sequences

作者: Serena Cavallero , Viliam Snabel , Francesca Pacella , Vitantonio Perrone , Stefano D'Amelio

DOI: 10.1371/JOURNAL.PNTD.0002170

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摘要: Background The taxonomic distinctiveness of Ascaris lumbricoides and A. suum, two the world's most significant nematodes, still represents a much-debated scientific issue. Previous studies have described different scenarios in transmission patterns, explained by hypotheses: (1) separated host-specific cycles highly endemic regions, (2) single pool infection shared humans pigs non-endemic regions. Recently, suum has been suggested as an important cause human ascariasis areas such China, where cross-infections hybridization also reported. The main aims present study were to investigate molecular epidemiology pig from regions and, with reference existing data, infer phylogenetic phylogeographic relationships among samples.

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