Category:Media from Franceschini et al. - 10.1051/parasite/2021065

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Authors: Lidiane Franceschini, Aline Aguiar, Aline Cristina Zago, Priscilla de Oliveira Fadel Yamada, Mariana Bertholdi Ebert and Reinaldo José da Silva

• (2021). "Three new species of Creptotrema (Trematoda, Allocreadiidae) with an amended diagnosis of the genus and reassignment of Auriculostoma (Allocreadiidae), based on morphological and molecular evidence". Parasite 28: 69. DOI:10.1051/parasite/2021065.

Three new species of Creptotrema (Trematoda, Allocreadiidae) with an amended diagnosis of the genus and reassignment of Auriculostoma (Allocreadiidae), based on morphological and molecular evidence 

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Instance of	scholarly article
Main subject	Creptotrema Auriculostoma Allocreadiidae (Allocreadiidae)
Author	Lidiane Franceschini (1) Reinaldo José da Silva (6) Aline Aguiar (2) Aline Cristina Zago (3) Priscilla de Oliveira Fadel Yamada (4) Mariana Bertholdi Ebert (5)
Published in	Parasite
Language of work or name	English
Copyright license	Creative Commons Attribution 4.0 International (2021–)
Publication date	2021
Authority file  Q109908600 DOI: 10.1051/PARASITE/2021065 PubMed ID: 34643505 PMCID: 8513519 Reasonator Scholia Wikidocumentaries PetScan statistics WikiMap Locator tool KML file Search depicted

Abstract
Diversity of Creptotrema was investigated using morphological and molecular tools, including data for Creptotrema creptotrema (type-species). Three new species, parasites of Brazilian fishes, are described: Creptotrema conconae n. sp. (type-host, Imparfinis mirini Haseman), Creptotrema schubarti n. sp. (type-host, Characidium schubarti Travassos) and Creptotrema megacetabularis n. 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 Creptotrema spp. from Brazil, including 28S, ITS and COI. Genetic divergences among the new species and C. creptotrema varied 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 Creptotrema in a clade (Creptotrema clade sensu stricto) composed of C. creptotrema, the new species described herein, and all species previously described as Auriculostoma, revealing that Auriculostoma is best interpreted as a synonym of Creptotrema based on the principle of priority of zoological nomenclature. Creptotrema funduli, the single sequence of the genus previously available, was not grouped within the Creptotrema clade sensu stricto, suggesting the need for reevaluation of the taxonomic status of this species. Our results showed that Creptotrema represents a monophyletic genus of trematodes widely distributed across the Americas, which currently comprises 19 valid species of parasites of teleosts and anurans.