Variability and inheritance of double stranded RNA viruses in Phaffia rhodozyma

The present survey demonstrates polymorphism in both the length and the number of double-stranded RNAs (dsRNAs) among six Phaffia rhodozyma strains. Strains with one-, three- and four-types of dsRNA molecules were found, while two strains proved to be dsRNA-free. Elongated icosahedral virus-like par...

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Bibliographic Details
Published inCurrent genetics Vol. 30; no. 4; p. 294
Main Authors Pfeiffer, I, Kucsera, J, Varga, J, Párducz, A, Ferenczy, L
Format Journal Article
LanguageEnglish
Published United States 01.09.1996
Subjects
arn
Basidiomycota - genetics
Basidiomycota - physiology
disease transmission
Electrophoresis
Extrachromosomal Inheritance
genetic inheritance
genetic variation
heredite
herencia genetica
Inclusion Bodies, Viral - chemistry
Inclusion Bodies, Viral - genetics
Inclusion Bodies, Viral - ultrastructure
levadura
levure
Microscopy, Electron
Phenotype
Polymorphism, Genetic
rna
RNA, Double-Stranded - drug effects
RNA, Double-Stranded - genetics
RNA, Fungal - genetics
RNA, Viral - genetics
Spores, Fungal - genetics
transmision de enfermedades
transmission des maladies
variacion genetica
variation genetique
virus
viruses
yeasts
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Summary:The present survey demonstrates polymorphism in both the length and the number of double-stranded RNAs (dsRNAs) among six Phaffia rhodozyma strains. Strains with one-, three- and four-types of dsRNA molecules were found, while two strains proved to be dsRNA-free. Elongated icosahedral virus-like particles (VLPs) 34x26 nm in size were detected in strains carrying four- or three-types of dsRNAs. One 3.7-kb dsRNA molecule was found not to form part of the VLP genome. Transmission of the VLPs of strain ATCC 24203 was followed through the basidiospores during the sexual cycle. Cytoplasmic inheritance was observed.
Bibliography:F30
F
ISSN:0172-8083
1432-0983
DOI:10.1007/s002940050135