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