Detection of Genetic Variation in Taenia solium

Pablo Maravilla; Valeria Souza; Aldo Valera; Mirza Romero-Valdovinos; Yolanda Lopez-Vidal; Jose Luis Dominguez-Alpizar; Javier Ambrosio; Simon Kawa; Ana Flisser

doi:10.1645/GE-2786RN

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Pablo Maravilla,^1,2 Valeria Souza,³ Aldo Valera,³ Mirza Romero-Valdovinos,² Yolanda Lopez-Vidal,¹ Jose Luis Dominguez-Alpizar,⁴ Javier Ambrosio,¹ Simon Kawa,² Ana Flisser^1,2,5

¹Departamento de Microbiologia y Parasitologia, Facultad de Medicina, Universidad Nacional Autonoma de México, 04510 Mexico, DF, Mexico
²Direccion de Investigacion, Hospital General “Dr. Manuel Gea Gonzalez,” SSA, 11400 Mexico, DF, Mexico
³Departamento de Ecologia Evolutiva, Instituto de Ecologia, Universidad Nacional Autonoma de Mexico, 04510 Mexico, DF, Mexico
⁴Facultad de Medicina Veterinaria y Zootecnia, Universidad Autonoma de Yucatan, 97100 Merida, Yucatan, Mexico
⁵To whom correspondence should be addressed. flisser@servidor.unam.mx

Abstract

Genetic variability among Taenia solium isolates was studied in 160 cysticerci from 6 pigs, 4 from Mexico, 1 from Honduras, and 1 from Tanzania. Random amplified polymorphic DNA (RAPD) analysis performed with 4 commercial primers showed 88% polymorphic loci and an average heterozygosity of 0.077; however, several alleles were fixed within each isolate. Linkage disequilibrium analysis indicated that 3 of the 6 isolates had a random association of alleles, whereas the other 3 had a clonal structure. These results suggest the existence of local lineages in T. solium, with events of genetic recombination within them.

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Pablo Maravilla, Valeria Souza, Aldo Valera, Mirza Romero-Valdovinos, Yolanda Lopez-Vidal, Jose Luis Dominguez-Alpizar, Javier Ambrosio, Simon Kawa, and Ana Flisser "Detection of Genetic Variation in Taenia solium," Journal of Parasitology 89(6), 1250-1254, (1 December 2003). https://doi.org/10.1645/GE-2786RN

Published: 1 December 2003

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