| Autor: |
Franceschini, Lidiane, Aguiar, Aline, Zago, Aline Cristina, de Oliveira Fadel Yamada, Priscilla, Bertholdi Ebert, Mariana, da Silva, Reinaldo José, Franceschini, Lidiane, Aguiar, Aline, Zago, Aline Cristina, de Oliveira Fadel Yamada, Priscilla, Bertholdi Ebert, Mariana, da Silva, Reinaldo José |
| Zdroj: |
Parasite - Journal de la Société Française de Parasitologie; January 2021, Vol. 28 Issue: 1 |
| Abstrakt: |
Diversity of Creptotremawas investigated using morphological and molecular tools, including data for Creptotrema creptotrema(type-species). Three new species, parasites of Brazilian fishes, are described: Creptotrema conconaen. sp. (type-host, Imparfinis miriniHaseman), Creptotrema schubartin. sp. (type-host, Characidium schubartiTravassos) and Creptotrema megacetabularisn. sp. (type-host, Auchenipterus osteomystax(Miranda Ribeiro)). The diagnosis of the genus was amended to include new features. The new species differ from each other mainly in terms of body shape, relative sucker size, and testes position. DNA sequences were obtained from Creptotremaspp. from Brazil, including 28S, ITS and COI. Genetic divergences among the new species and C. creptotremavaried from 2.1 to 5.2% (21–49 bp) for 28S, and 6.6 to 16.4% (21–45 bp) for COI. Phylogenetic analysis (28S) placed the newly generated DNA sequences of Creptotremain a clade (Creptotremaclade sensu stricto) composed of C. creptotrema, the new species described herein, and all species previously described as Auriculostoma, revealing that Auriculostomais best interpreted as a synonym of Creptotremabased on the principle of priority of zoological nomenclature. Creptotrema funduli, the single sequence of the genus previously available, was not grouped within the Creptotremaclade sensu stricto, suggesting the need for reevaluation of the taxonomic status of this species. Our results showed that Creptotremarepresents a monophyletic genus of trematodes widely distributed across the Americas, which currently comprises 19 valid species of parasites of teleosts and anurans. |
| Databáze: |
Supplemental Index |
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