Abstract:
:Mitochondrial DNA (mtDNA) types based on restriction fragment length polymorphism (RFLP) patterns with HaeIII were investigated in clinical isolates of Sporothrix schenckii in North and South America. In addition to 14 mtDNA types (Types 1-14) so far reported, six new mtDNA types, Types 15-20 were found in this study. Type 3 was divided into two subtypes, Subtype 3A and Subtype 3B based on RFLP with Msp1. Type 14 was also divided into three subtypes, Subtype 14A, Subtype 14B and Subtype 14C based on RFLP with Hha1. Nineteen isolates in the United States consisted of 1 isolate of Type 1, 12 of Type 2, 2 of Type 4, 3 of Type 14 (1 of Subtype 14B and 2 of Subtype 14C) and 1 of Type 15. Twenty nine isolates in Venezuela consisted of 13 of Type 3 (Subtype 3B), 6 of Type 4, 1 of Type 18, 3 of Type 19 and 6 of Type 20. Thirteen isolates in Argentina consisted of 2 of Type 3 (Subtype 3A), 4 of Type 4, 4 of Type 16 and 3 of Type 17. One isolate in Brazil was Type 3 (Subtype 3A). Based on the phylogeny of 20 mtDNA types (Types 1-20) constructed by estimating sequence divergences of mtDNA, mtDNA types were clustered into two groups: Group A (Types 1-3, Type 11 and Types 14-19) and Group B (Types 4-10, Types 12-13 and Type 20). These results suggest that S. schenckii isolates in North and South America mainly belong to Group A.
journal_name
Mycopathologiajournal_title
Mycopathologiaauthors
Ishizaki H,Kawasaki M,Aoki M,Matsumoto T,Padhye AA,Mendoza M,Negroni Rdoi
10.1023/a:1006952702947keywords:
subject
Has Abstractpub_date
1998-01-01 00:00:00pages
115-8issue
3eissn
0301-486Xissn
1573-0832journal_volume
142pub_type
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