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Genetic diversity among isolates of Trichinella spiralis from the Province of Buenos Aires, Argentina

Published online by Cambridge University Press:  12 April 2024

A. Sequeira*
Affiliation:
Departamento de Parasitología Sanitaria, Instituto Nacional de Parasitología, ANLIS, Dr Carlos G. Malbran, CP 1281, Buenos Aires, Argentina
V. Molina
Affiliation:
Departamento de Parasitología Sanitaria, Instituto Nacional de Parasitología, ANLIS, Dr Carlos G. Malbran, CP 1281, Buenos Aires, Argentina
M. Monfellano
Affiliation:
Departamento de Parasitología Sanitaria, Instituto Nacional de Parasitología, ANLIS, Dr Carlos G. Malbran, CP 1281, Buenos Aires, Argentina
J. Bolpe
Affiliation:
Departamento de Parasitología Sanitaria, Instituto Nacional de Parasitología, ANLIS, Dr Carlos G. Malbran, CP 1281, Buenos Aires, Argentina
E. Guarnera
Affiliation:
Departamento de Parasitología Sanitaria, Instituto Nacional de Parasitología, ANLIS, Dr Carlos G. Malbran, CP 1281, Buenos Aires, Argentina
*
*Present address: Museum of Comparative Zoology Laboratories, Harvard University, 26 Oxford Street, Cambridge, MA 02138, USA. Fax: 1 617 495 5667 E-mail: [email protected]
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Abstract

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Random Amplified Polymorphic DNAs, (RAPDs) are used to study the occurrence of Trichinella britovi and T5 among domestic animals in the Province of Buenos Aires, Argentina and to assess the genetic diversity among isolates of T. spiralisfrom this area in a number of infected hosts. All the local isolates proved to be T. spiralis. Six of the eight primers used indicate that the Buenos Aires isolates are distinct from each other as they produce a considerable number of polymorphic bands. Our overall estimates are relatively higher than other intraspecific distances previously estimated within species of this genus and among T. spiralis isolates. Such high degrees of variability observed among local isolates and between isolates from Buenos Aires and Spain should be taken into account when defining isolates within this species, and considering differences in the epidemiology of T. spiralis.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2000

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