First integrative assessment of Ochetosoma heterocoelium (Travassos, 1921) (Digenea: Ochetosomatidae) parasite of Bothrops moojeni Hoge, 1966 (Reptilia: Viperidae) from Brazil

Autor(es)

Emmerich, E. ; Alcantara, E. ; Ungari, L. ; O'Dwyer, L. ; de Leon, G. Perez-Ponce ; Silva, R.

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF HELMINTHOLOGY; v. 99, p. 11-pg., 2025-04-24.

Resumo

Ochetosoma heterocoelium (Travassos, 1921) was collected from the mouth and oesophagus of a pit viper, Bothrops moojeni Hoge, 1966 in S & atilde;o Sebasti & atilde;o do Para & iacute;so Farm (21 degrees 51'48.26" S, 48 degrees 26'56.78" W), municipality of Boa Esperan & ccedil;a do Sul, S & atilde;o Paulo State, Brazil. In this study, we provide the first molecular characterisation of this digenean using 28S rDNA and COI sequences, and its phylogenetic position within the Plagiorchiida is assessed. Furthermore, new morphological features are added to the diagnosis of the species, and scanning electron microscopy photomicrographs are presented. Sequences of the 28S rRNA gene of O. heterocoelium were successfully obtained and aligned with 35 digenean species belonging to Plagiorchiida. Only three congeners - O. aniarum (Leidy, 1890), O elongatum (Seo et al. 2024), and O. kansense (Crow, 1913) - have been sequenced for this molecular marker. The newly sequenced individuals of O. heterocoelium are 98.7% and 99.4% similar to O. aniarum and O. kansensis, respectively, and Ochetosoma is not recovered as a monophyletic group. Dasymetra nicolli Holl and Allison, 1935 and Lechriorchis tygarti Talbot, 1933 are nested with Ochetosoma. (AU)

• Processo FAPESP: 18/09623-4 - Biodiversidade de parasitos associados a anfíbios e répteis das regiões centro-oeste e sudeste brasileiras
• Beneficiário: Lucia Helena O'Dwyer de Oliveira
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 23/07336-6 - Diversidade, taxonomia e filogeografia de hemoparasitas de hospedeiros de ambiente aquático/semiaquático (peixes, anuros e sanguessugas) da América do Sul e África
• Beneficiário: Letícia Pereira Úngari
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 18/00754-9 - Biodiversidade de hemoparasitos associados a anfíbios e répteis das regiões Centro-Oeste e Sudeste brasileiras
• Beneficiário: Letícia Pereira Úngari
• Modalidade de apoio: Bolsas no Brasil - Doutorado