title: Molecular and morphological characterization of Contracaecum pelagicum (Nematoda) parasitizing Spheniscus magellanicus (Chordata) from Brazilian waters.
abstract: Three new sequences of Mitochondrial cytochrome c-oxidase subunit 2 (mtDNA cox-2) from C. pelagicum parasite of Spheniscus magellanicus, the Magelanicus penguin, were determined from Brazilian waters. The sequences presented 99 and 98% of similarity with C. pelagicum sequences from Argentina, deposited on GenBank for the same genetic region and with a strong statistical support inferred from the phylogenetic tree. The morphological and ultrastructural studies that were carried out confirmed the genetic analysis.
authors.affiliation: Laboratório de Avaliação e Promoção da Saúde Ambiental ? LAPSA, Instituto Oswaldo Cruz ? IOC, Rio de Janeiro, RJ, Brasil.
authors.forename: Juliana Novo
authors.initials: JN
authors.lastname: Borges
authors.affiliation: Laboratório de Avaliação e Promoção da Saúde Ambiental ? LAPSA, Instituto Oswaldo Cruz ? IOC, Rio de Janeiro, RJ, Brasil.
authors.forename: Helena Lúcia Carneiro
authors.initials: HL
authors.lastname: Santos
authors.affiliation: Curso de Pós-graduação em Parasitologia Veterinária, Universidade Federal Rural do Rio de Janeiro ? UFRRJ, Seropédica, RJ, Brasil.
authors.forename: Martha Lima
authors.initials: ML
authors.lastname: Brandão
authors.affiliation: Laboratório de Avaliação e Promoção da Saúde Ambiental ? LAPSA, Instituto Oswaldo Cruz ? IOC, Rio de Janeiro, RJ, Brasil.
authors.forename: Everton Gustavo Nunes
authors.initials: EG
authors.lastname: dos Santos
authors.affiliation: Laboratório de Avaliação e Promoção da Saúde Ambiental ? LAPSA, Instituto Oswaldo Cruz ? IOC, Rio de Janeiro, RJ, Brasil.
authors.forename: Daniele Ferreira
authors.initials: DF
authors.lastname: de Miranda
authors.affiliation: Fundação Jardim Zoológico da Cidade, Rio de Janeiro, RJ, Brasil.
authors.forename: Daniel de Almeida
authors.initials: Dde A
authors.lastname: Balthazar
authors.affiliation: Departamento de Parasitologia Animal, Universidade Federal Rural do Rio de Janeiro ? UFRRJ, Seropédica, RJ, Brasil.
authors.forename: José Luis
authors.initials: JL
authors.lastname: Luque
authors.affiliation: Laboratório de Avaliação e Promoção da Saúde Ambiental ? LAPSA, Instituto Oswaldo Cruz ? IOC, Rio de Janeiro, RJ, Brasil.
authors.forename: Cláudia Portes
authors.initials: CP
authors.lastname: Santos
mesh_terms: D000818:Animals; D001199:Ascaridoidea / Q000033:anatomy & histology* / Q000235:genetics* / Q000502:physiology; D001483:Base Sequence; D001938:Brazil; D004272:DNA, Mitochondrial / Q000032:analysis; D003576:Electron Transport Complex IV / Q000235:genetics; D005260:Female; D008297:Male; D046429:Spheniscidae / Q000469:parasitology*
chemical_list: D004272:DNA, Mitochondrial; D003576:Electron Transport Complex IV