Artigo

Genetic diversity and population structure of Synthesium pontoporiae (Digenea, Brachycladiidae) linked to its definitive host stocks, the endangered Franciscana dolphin, Pontoporia blainvillei (Pontoporiidae) off the coast of Brazil and Argentina

Pontoporia blainvillei (Gervais and d'Orbigny, 1844) is an endangered small cetacean endemic to South America with four Franciscana Management Areas (FMA) recognized as different population stocks. The role of the intestinal parasite Synthesium pontoporiae (Digenea: Brachycladiidae) as a possible bi...

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Autor principal: Marigo, Juliana
Outros Autores: Cunha, Haydée A., Bertozzi, Carolina Pacheco, Souza, S. P., Weber Rosas, Fernando Cesar, Cremer, Marta Jussara, Barreto, André S., Oliveira, Larissa Rosa de, Cappozzo, Humberto Luis, Valente, Ana Luísa Schifino, Santos, Cláudia Portes, Vicente, Ana Carolina Paulo
Grau: Artigo
Idioma: English
Publicado em: Journal of Helminthology 2020
Assuntos:
Cytochrome C Oxidase
Cytochrome Oxidase Subunit I
Dna, Mitochondrial
Nadh Dehydrogenase Subunit 3
Reduced Nicotinamide Adenine Dinucleotide Dehydrogenase
Unclassified Drug
Helminth Protein
Dna Extraction
Dna Sequence
Dolphin
Gene Amplification
Gene Flow
Gene Sequence
Genetic Variability
Haplotype
Intraspecific Variation
Nonhuman
Pontoporia Blainvillei
Population Differentiation
Population Structure
Synthesium Pontoporiae
Trematode
Animals
Argentina
Brasil
Cestode Infections
Classification
Dolphin
Endangered Species
Enzymology
Genetic Variation
Genetics
Intestinal Diseases, Parasitic
Isolation And Purification
Molecular Genetics
Parasitology
Phylogeny
Platyhelminth
Veterinary
Cetacea
Pontoporia Blainvillei
Pontoporiidae
Synthesium
Animal
Argentina
Brasil
Cestode Infections
Dolphins
Electron Transport Complex Iv
Endangered Species
Genetic Variation
Helminth Proteins
Intestinal Diseases, Parasitic
Molecular Sequence Data
Nadh Dehydrogenase
Phylogeny
Platyhelminths
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/17577
Resumo:
Pontoporia blainvillei (Gervais and d'Orbigny, 1844) is an endangered small cetacean endemic to South America with four Franciscana Management Areas (FMA) recognized as different population stocks. The role of the intestinal parasite Synthesium pontoporiae (Digenea: Brachycladiidae) as a possible biological marker to differentiate P. blainvillei stocks was evaluated using nuclear and mitochondrial DNA markers. Internal transcribed sequence 1 and 2 (ITS1 and ITS2) regions of S. pontoporiae did not show intraspecific variability. The mitochondrial NADH dehydrogenase subunit 3 (ND3) and cytochrome oxidase subunit I (COI) gene sequences suggested lack of population structure in S. pontoporiae and population expansion. The apparent panmixia of S. pontoporiae may be due to the high mobility of one or more of its intermediary hosts. Alternatively, it may be due to the small sample size. This result is incongruent with the previously proposed FMA. Copyright © Cambridge University Press 2013.

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