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Draft Genome Sequence of Fonsecaea monophora Strain CBS 269.37, an Agent of Human Chromoblastomycosis. GENOME ANNOUNCEMENTS 2016; 4:4/4/e00731-16. [PMID: 27469960 PMCID: PMC4966464 DOI: 10.1128/genomea.00731-16] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The black yeast Fonsecaea monophora is one of the main etiologic agents of chromoblastomycosis in humans. Its pathogenicity profile is more invasive than that of related Fonsecaea species, causing brain infection in addition to (sub)cutaneous infections.
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Sun J, Najafzadeh MJ, Gerrits van den Ende AHG, Vicente VA, Feng P, Xi L, De Hoog GS. Molecular characterization of pathogenic members of the genus Fonsecaea using multilocus analysis. PLoS One 2012; 7:e41512. [PMID: 22876287 PMCID: PMC3410912 DOI: 10.1371/journal.pone.0041512] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2012] [Accepted: 06/22/2012] [Indexed: 11/18/2022] Open
Abstract
Members of the fungal genus Fonsecaea causing human chromoblastomycosis show substantial geographic structuring. Genetic identity of clinical and environmental strains suggests transmission from plant debris, while the evolutionary processes that have led to spatially separated populations have remained unexplained. Sequences of ITS, BT2, ACT1, Cdc42, Lac and HmgA were analyzed, either by direct sequencing or by cloning. Thirty-seven clinical and environmental Fonsecaea strains from Central and South America, Asia, Africa and Europe were sequenced and possible recombination events were calculated. Phylogenetic trees of Cdc42, Lac and HmgA were statistically supported, but ITS, BT2 and ACT1 trees were not. The Standardized Index of Association (IAS) did not detect recombination (IAS = 0.4778), neither did the Phi-test for separate genes. In Fonsecaea nubica non-synonymous mutations causing functional changes were observed in Lac gene, even though no selection pressures were detected with the neutrality test (Tajima D test, p>0.05). Genetic differentiation of populations for each gene showed separation of American, African and Asian populations. Strains of clinical vs. environmental origin showed genetic distances that were comparable or lower than found in geographic differentiation. In conclusion, here we demonstrated clonality of sibling species using multilocus data, geographic structuring of populations, and a low functional and structural selective constraint during evolution of the genus Fonsecaea.
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Affiliation(s)
- Jiufeng Sun
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- Department of Parasitology, Zhongshan School of Medicine, Key Laboratory for Tropical Disease Control, Ministry of Education, Sun Yat-sen University, Guangzhou, Guangdong, China
- CBS-KNAW Fungal Biodiversity Centre, Utrecht, The Netherlands
| | - Mohammed J. Najafzadeh
- CBS-KNAW Fungal Biodiversity Centre, Utrecht, The Netherlands
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, The Netherlands
- Department of Parasitology and Mycology, and Cancer Molecular Pathology Research Center, Ghaem Hospital, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | | | - Vania A. Vicente
- Department of Basic Pathology, Federal University of Paraná, Curitiba, PR, Brazil
| | - Peiying Feng
- CBS-KNAW Fungal Biodiversity Centre, Utrecht, The Netherlands
- Department of Dermatology, Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Liyan Xi
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- * E-mail: (LX); (GSDH)
| | - Gerrit S. De Hoog
- Department of Dermatology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, China
- CBS-KNAW Fungal Biodiversity Centre, Utrecht, The Netherlands
- Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, The Netherlands
- Peking University Health Science Center, Research Center for Medical Mycology, Beijing, China
- * E-mail: (LX); (GSDH)
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