Morphological and molecular characterization of Ameloblastella pirarara sp. n. (Monogenoidea: Dactylogyridae) parasitizing the large Amazonian catfish Phractocephalus hemioliopterus

Autor(es)

Mathews, Patrick D. ^[1] ; Domingues, V, Marcus ; Maia, Antonio A. M. ^[2] ; Silva, Marcia R. M. ^[2] ; Adriano, Edson A. ^[3] ; Aguiar, Julio C. ^[4]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Biosci, Dept Zool, BR-05508090 Sao Paulo - Brazil

^[2] Univ Sao Paulo, Fac Zootech & Food Engn, Dept Vet Med, BR-13635900 Sao Paulo - Brazil

^[3] Univ Fed Sao Paulo, Inst Environm Chem & Pharmaceut Sci, Dept Biol Sci, BR-09972270 Sao Paulo - Brazil

^[4] Univ Estadual Campinas, Inst Biol, Dept Anim Biol, BR-13083970 Campinas - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Microbial Pathogenesis; v. 158, SEP 2021.
• Citações Web of Science: 0

Resumo

In this study, integrative taxonomy is applied to describe a new dactylogyrid species, Ameloblastella pirarara sp. n. from the gills of Phractocephalus hemioliopterus, a commercially and ecologically important Amazonian catfish. Ameloblastella pirarara sp. n. can be distinguished from its congeners mainly by the morphology of the male copulatory organ (MCO), accessory piece, and anchors. The new species most resembles Ameloblastella unapi, from the Peruvian Amazon, but differs from it by the number of MCO rings, morphology of the vaginal canal and sclerotized structures of the haptor. Phylogenetic analyses based on sequences of the partial 28S rDNA (D1-D2 domains) gene placed the new species in a well-supported subclade of Ameloblastella spp. parasites of Neotropical siluriform fish, as a sister taxon to Ameloblastella unapioides. Thus, the new species described herein expands our knowledge of the diversity of monogenoid parasites from Amazonian freshwater fish. (AU)

• Processo FAPESP: 13/21374-6 - Sistemática e interação parasito-hospedeiro de parasitos do filo Myxozoa em peixes de importância econômica da Bacia Amazônica
• Beneficiário: Edson Aparecido Adriano
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Regular