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Genetics of heat‐curability of killer virus of yeast
Author(s) -
Weinstein Lee Ann,
CapaldoKimball Florence,
Leibowitz Michael J.
Publication year - 1993
Publication title -
yeast
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.923
H-Index - 102
eISSN - 1097-0061
pISSN - 0749-503X
DOI - 10.1002/yea.320090411
Subject(s) - biology , virus , loss of heterozygosity , genome , saccharomyces cerevisiae , rna silencing , genetics , yeast , ploidy , allele , virology , rna , gene , rna interference
The cytoplasmically inherited M double‐stranded (ds) RNA genome segment of killer virus of Saccharomyces cerevisiae is heat‐curable in some yeast strains but not in others. Temperature sensitivity is conferred on both M 1 and M 2 dsRNA satellite virus segments by the L‐A‐HN allele of the killer helper virus genome, but not by the L‐A‐H allele. Both diploidy and mating type heterozygosity of the host cell are also correlated with increased virus curability.