Genetic Diversity of Toxoplasma gondii Isolates From Free-Range Chickens In Bahia, Brazil

The Journal of Parasitology
Daniele S RochaGeorge R Albuquerque

Abstract

The genotyping of 25 isolates of Toxoplasma gondii from free-range chickens in the state of Bahia, Brazil, was performed by PCR-restriction fragment length polymorphism using 11 genetic markers: SAG1, 5'+3'SAG2, alt.SAG2, SAG3, BTUB, GRA6, c22-8, c29-2, L358, PK1, Apico, and CS3. The analysis revealed 8 genotypes, 3 of which had not been previously reported. Four genotypes were represented by single isolates, whereas the other genotypes were represented by 2 or more isolates. Five isolates showed mixed infections, and 2 of them were identical. None of the clonal types I, II, or III were found, but 2 isolates corresponded to the Brazilian clonal lineage BrIII. There was a single allele for the c22-8 marker. The CS3 marker demonstrated efficiency in the evaluation of virulence in mice. This study reaffirms the diverse genetic variability of T. gondii in Brazil.

References

Nov 25, 2003·The Journal of Parasitology·J P DubeyT Lehmann
Dec 27, 2005·Infection, Genetics and Evolution : Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases·Adriana de Melo FerreiraMaria Norma Melo
Oct 30, 2007·International Journal for Parasitology·H F J PenaC Su
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Sep 23, 2008·Veterinary Parasitology·J P DubeyC Su
Jan 25, 2011·Veterinary Parasitology·Rodrigo Martins SoaresHilda Fátima de Jesus Pena

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Citations

Aug 8, 2020·Parasites & Vectors·Mercedes Fernández-EscobarLuis Miguel Ortega-Mora
Dec 18, 2020·Frontiers in Veterinary Science·Mercedes Fernández-EscobarLuis Miguel Ortega-Mora
Mar 16, 2021·Journal of Veterinary Diagnostic Investigation : Official Publication of the American Association of Veterinary Laboratory Diagnosticians, Inc·Waléria Borges-SilvaLuís P Gondim
Jul 7, 2021·Transboundary and Emerging Diseases·Webster Leonardo Guimarães da CostaHanstter Hallison Alves Rezende

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Methods Mentioned

BETA
genotyping
PCR
electrophoresis
genetic modification

Software Mentioned

PAST

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