Genotyping of a Korean isolate of Toxoplasma gondii by multilocus PCR-RFLP and microsatellite analysis
2008
Quan, Juan-Hua (Chungnam National University, Daejeon, Republic of Korea) | Kim, T.Y. (Chungnam National University, Daejeon, Republic of Korea) | Choi, I.U. (Chungnam National University, Daejeon, Republic of Korea) | Lee, Y.H. (Chungnam National University, Daejeon, Republic of Korea), E-mail: yhalee@cnu.ac.kr
Although the Korean isolate KI-1 of Toxoplasma gondii has been considered to be a virulent type Ⅰ lineage because of its virulent clinical manifestations, its genotype is unclear. In the present study, genotyping of the KI-1 was performed by multilocus PCR-RFLP and microsatellite sequencing. For 9 genetic markers (c22-8, c29-2, L358, PK1, SAG2, SAG3, GRA6, BTUB, and Apico), the KI-1 and RH strains exhibited typical PCR-RFLP patterns identical to the type Ⅰ strains. DNA sequencing of tandem repeats in 5 microsatellite markers (B17, B18, TUB2, W35, and TgM-A) of the KI-1 also revealed patterns characteristic of the type Ⅰ. These results provide strong genetic evidence that KI-1 is a type Ⅰ lineage of T. gondii.
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