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Molecular and Phenotypic Description of Coccidioides posadasii sp. nov., Previously Recognized as the Non-California Population of Coccidioides immitis
M. C. Fisher, G. L. Koenig, T. J. White and J. W. Taylor
Vol. 94, No. 1 (Jan. - Feb., 2002), pp. 73-84
Published by: Mycological Society of America
Stable URL: http://www.jstor.org/stable/3761847
Page Count: 12
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Coccidioides posadasii sp. nov., formerly known as non-California (non-CA) Coccidioides immitis, is described. Phylogenetic analyses using single nucleotide polymorphisms, genes, and microsatellites show that C. posadasii represents a divergent, genetically recombining monophyletic clade. Coccidioides posadasii can be distinguished from C. immitis by numerous DNA polymorphisms, and we show how either of two microsatellite loci may be used as diagnostic markers for this species. Growth experiments show that C. posadasii has significantly slower growth rates on high-salt media when compared with C. immitis, suggesting that other phenotypic characters may exist.
Mycologia © 2002 Mycological Society of America