Journal
EMERGING INFECTIOUS DISEASES
Volume 17, Issue 3, Pages 464-469Publisher
CENTERS DISEASE CONTROL
DOI: 10.3201/1703.100555
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- Ministry of Health and Medical Education of Iran
- Mashhad University of Medical Sciences, Mashhad, Iran
- Sun Yat-Sen University, China [985]
- Coordenacao de Aperfeicoamento Pessoal de Nivel Superior/Brazil
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To assess population diversities among 81 strains of fungi in the genus Fonsecaea that had been identified down to species level, we applied amplified fragment-length polymorphism (AFLP) technology and sequenced the internal transcribed spacer regions and the partial cell division cycle, beta-tubulin, and actin genes. Many species of the genus Fonsecaea cause human chromoblastomycosis. Strains originated from a global sampling of clinical and environmental sources in the Western Hemisphere, Asia, Africa, and Europe. According to AFLP fingerprinting, Fonsecaea isolates clustered in 5 groups corresponding with F. pedrosoi, F. monophora, and F. nubica: the latter 2 species each comprised 2 groups, and F. pedrosoi appeared to be of monophyletic origin. F. pedrosoi was found nearly exclusively in Central and South America. F. monophora and F nubica were distributed worldwide, but both showed substantial geographic structuring. Clinical cases outside areas where Fonsecaea is endemic were probably distributed by human migration.
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