Pubblicazione scientifica

The phylogenetic position of Anacanthorus (Monogenea, Dactylogyridae) parasitizing Brazilian serrasalmids (Characiformes)

FILONE TECNOLOGICO	TEMA
economia circolare e sostenibilità

RIASSUNTO

Anacanthorus (Anacanthorinae) is one of the most speciose and common genera of neotropical monogeneans, yet there are still many gaps in our knowledge concerning their diversity and phylogeny. We performed phylogenetic analyses of molecular sequences in order to investigate the phylogenetic position within the Dactylogyridae of Anacanthorus spp. infesting serrasalmids from two Brazilian river basins. Sequences of partial 28S rDNA obtained for nine species of Anacanthorus and Mymarothecium viatorum parasitizing serrasalmids and the published sequences of other members of the Dactylogyridae were included in the phylogenetic reconstruction. Phylogenetic analyses supported the monophyly of anacanthorine monogeneans. The Anacanthorinae (represented in this study by Anacanthorus spp.) formed a monophyletic group included in a large clade together with a group of solely freshwater Ancyrocephalinae and species of the Ancylodiscoidinae. Mymarothecium viatorum (Ancyrocephalinae) was placed within the clade of freshwater Ancyrocephalinae. The phylogenetic analyses indicated that the relationships among species of Anacanthorus reflect those of their serrasalmid hosts: the first subgroup includes a species specific to hosts assigned to Piaractus, a member of the “pacus” lineage; the second subgroup includes a species parasitizing the “Myleus-like pacus” lineage; and the third subgroup includes species parasitizing the lineage of the “true piranhas”. We suggest that Anacanthorus and their serrasalmid hosts can be considered a useful model to assess host-parasite biogeography and coevolution in the neotropics. However, future studies focusing on a wider spectrum of host species and their specific Anacanthorus spp. are needed in order to investigate coevolution in this highly diversified system.

DATA

Data di pubblicazione: 01/01/2019

AUTORI

MOREIRA JULIANA
LUQUE JOSE L
SIMKOVA ANDREA

ENTE DI AFFERENZA

CURSO DE POS GRADUACAO EM BIOLOGIA ANIMAL DA UNIV FEDERAL RURAL DO RIO DE JANEIRO BR 465 KM 7 CAIXA POSTAL 74 540 23890 000 SEROPEDICA RJ BRAZIL
DEPARTAMENTO DE PARASITOLOGIA ANIMAL UNIV FEDERAL RURAL DO RIO DE JANEIRO CAIXA POSTAL 74 540 23851 970 SEROPEDICA RJ BRAZIL
DEPARTMENT OF BOTANY AND ZOOLOGY FACULTY OF SCIENCE MASARYK UNIVERSITY KOTLARSKA 2 BRNO 611 37 CZECH REPUBLIC

RIVISTA

Parasite, 26, 44

IMPACT FACTOR

2,090

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