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Experimental hybridization between Oesophagostomum dentatum and O. quadrispinulatum in pigs.
Christensen, C M; Nansen, P; Bjørn, H; Hansen, N P.
Afiliação
  • Christensen CM; Danish Center for Experimental Parasitology, Royal Veterinary and Agricultural University, Frederiksberg C, Denmark. CMC@vetmi.kvl.dk
Parasitol Res ; 84(1): 1-6, 1998.
Article em En | MEDLINE | ID: mdl-9491418
ABSTRACT
To investigate eventual hybridization between two nodular worm species of pigs, Oesophagostomum dentatum and O. quadrispinulatum, we used either mature, adult worms or 10-day-old fourth-stage larvae (L4) as starting material, employing a nonsurgical transplantation technique. Following the transfer of adult worms the ensuing first generation of larvae gave rise to adult worms that were found by morphological examination to be purely O. dentatum. Therefore, we decided to use the immature L4 as starting material. After the transfer of L4 to recipient pigs, fecal cultures were established and the L3 derived from the O. dentatum male O. quadrispinulatum female cross gave rise to adult but infertile worms, which morphologically had the sexual characters of their parent generation, whereas other characteristics were intermediate between the two species. Attempts to reproduce the hybrid worms or the reciprocal cross were unsuccessful, indicating that hybridization between the two species is a rarely occurring phenomenon.
Assuntos
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Esofagostomíase / Oesophagostomum / Doenças dos Suínos / Hibridização Genética Limite: Animals Idioma: En Revista: Parasitol Res Assunto da revista: PARASITOLOGIA Ano de publicação: 1998 Tipo de documento: Article País de afiliação: Dinamarca
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Esofagostomíase / Oesophagostomum / Doenças dos Suínos / Hibridização Genética Limite: Animals Idioma: En Revista: Parasitol Res Assunto da revista: PARASITOLOGIA Ano de publicação: 1998 Tipo de documento: Article País de afiliação: Dinamarca