[Heterogeneity of the yeasts Zygowilliopsis californica: Z. californica var. dimennae comb. nov., stat. nov. and Z. californica var. fukushimae comb. nov., stat. nov].
Mikrobiologiia, 2006/5-2006/6;75(3):358-63.
Naumova ES, Gazdiev DO, Naumov GI
PMID: 16871802
Abstract
A significant heterogeneity of the species Zygowilliopsis californica was revealed using RFLP-analysis of the PCR-amplified rDNA fragment spanning the 5.8S rRNA gene and the internal transcribed spacers ITS1 and ITS2. Phylogenetic analysis of the nucleotide sequences of ITS1 and ITS2 rDNA differentiated three varieties: Z. californica var. californica, Z. californica var. dimennae, and Z. californica var. fukushimae. The most variable was the ITS 2 region, where 7-26 nucleotide substitutions were revealed. The varieties formed semisterile hybrids with meiotic segregation of control markers. The limits of the phylogenetic species concept are discussed.
MeSH terms
Asia; Australasia; DNA, Fungal; DNA, Ribosomal Spacer; Europe; North America; Phylogeny; Polymorphism, Restriction Fragment Length; RNA, Fungal; RNA, Ribosomal, 5.8S; Soil Microbiology; Species Specificity; Yeasts
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