title: Molecular phylogeny of the Myxobolus and Henneguya genera with several new South American species.
abstract: The present study consists of a detailed phylogenetic analysis of myxosporeans of the Myxobolus and Henneguya genera, including sequences from 12 Myxobolus/Henneguya species, parasites of South American pimelodids, bryconids and characids. Maximum likelihood and maximum parsimony analyses, based on 18 S rDNA gene sequences, showed that the strongest evolutionary signal is the phylogenetic affinity of the fish hosts, with clustering mainly occurring according to the order and/or family of the host. Of the 12 South American species studied here, six are newly described infecting fish from the Brazilian Pantanal wetland. Henneguya maculosus n. sp. and Myxobolus flavus n. sp. were found infecting both Pseudoplatystoma corruscans and Pseudoplatystoma reticulatum; Myxobolus aureus n. sp. and Myxobolus pantanalis n. sp. were observed parasitizing Salminus brasiliensis and Myxobolus umidus n. sp. and Myxobolus piraputangae n. sp. were detected infecting Brycon hilarii.
authors.affiliation: Departamento de Medicina Veterinária, Faculdade de Zootecnia e Engenharia de Alimentos, Universidade de São Paulo, Pirassununga, São Paulo, Brazil.
authors.forename: Mateus Maldonado
authors.initials: MM
authors.lastname: Carriero
authors.forename: Edson A
authors.initials: EA
authors.lastname: Adriano
authors.forename: Márcia R M
authors.initials: MR
authors.lastname: Silva
authors.forename: Paulo S
authors.initials: PS
authors.lastname: Ceccarelli
authors.forename: Antonio A M
authors.initials: AA
authors.lastname: Maia
mesh_terms: D000818:Animals; D001938:Brazil; D016054:DNA, Protozoan / Q000737:chemistry / Q000235:genetics*; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics*; D005393:Fish Diseases / Q000469:parasitology; D005399:Fishes / Q000145:classification / Q000469:parasitology; D008969:Molecular Sequence Data; D055764:Myxozoa / Q000033:anatomy & histology / Q000145:classification / Q000235:genetics*; D010273:Parasitic Diseases, Animal / Q000469:parasitology; D010802:Phylogeny; D016133:Polymerase Chain Reaction; D012337:RNA, Ribosomal, 18S / Q000145:classification / Q000235:genetics*; D017422:Sequence Analysis, DNA; D013045:Species Specificity; D033761:Spores, Protozoan / Q000166:cytology / Q000235:genetics; D053833:Wetlands
chemical_list: D016054:DNA, Protozoan; D004275:DNA, Ribosomal; D012337:RNA, Ribosomal, 18S
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