期刊
FUNGAL GENETICS AND BIOLOGY
卷 45, 期 4, 页码 400-421出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.fgb.2007.12.004
关键词
Cryptococcus neoformans; Cryptococcus gattii; multi-locus sequence typing; genotype; haplotype
Cryptococcus neoformans and Cryptococcus gattii are closely related pathogenic basidiomycetous yeasts in which six haploid genotypic Groups have been distinguished. The two haploid genotypic groups of C neoformans have been described as variety grubii and variety neoformans. The four C gattii genotypic groups have, however, not been described as separate taxa. One hundred and seventeen isolates representing all six haploid genotypic groups were selected for multi-locus sequence typing using six loci to investigate if the isolates consistently formed monophyletic lineages. Two monophyletic lineages, corresponding to varieties grubii and neoformans, were consistently present within C neoformans, supporting the current classification. In addition, four monophyletic lineages corresponding to the previously described genotypic groups were consistently found within C gattii, indicating that these lineages should be considered different taxa as well. (C) 2007 Elsevier Inc. All rights reserved.
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