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  • Title: Identification of visceral Leishmania species with cloned sequences of kinetoplast DNA.
    Author: Lopes UG, Wirth DF.
    Journal: Mol Biochem Parasitol; 1986 Jul; 20(1):77-84. PubMed ID: 3016536.
    Abstract:
    Several efforts have been made in order to develop more precise and sensitive methods in the identification of Leishmania parasites. We report here the identification of cloned subfragments of minicircle kinetoplast DNA (kDNA) isolated from L. donovani, WR352, which show different taxonomic specificities. Analysis of these fragments demonstrates a significant sequence diversity within the kDNA minicircle. For example, one cloned fragment was found to be present in all visceral Leishmania species tested, but was not present in any of the cutaneous Leishmania species. Another cloned fragment was only found in the strain from which it had been derived, and was not present in any of the other strains tested. In similar experiments with the New World visceral leishmanias (L. chagasi, WR518) several different cloned kDNA fragments were found to react with all of isolates of the L. chagasi tested, but not with any cutaneous Leishmania species, either from the Old World or the New World. It is of interest to note that these cloned L. chagasi kDNA fragments reacted with isolates of African visceral Leishmania species but not with isolates from India.
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