Isolation and characterization of chromosome-gain and increase-in-ploidy mutants in yeast.
Isolation and characterization of chromosome-gain and increase-in-ploidy mutants in yeast.
复制标题
酵母中染色体获得和倍性增加突变体的分离和表征。
DOI:
10.1093/genetics/135.3.677
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发表时间:
1993
期刊:
影响因子:
3.3
通讯作者:
Botstein,D
中科院分区:
文献类型:
--
作者:
Chan,CS;Botstein,D
We have developed a colony papillation assay for monitoring the copy number of genetically marked chromosomes II and III in Saccharomyces cerevisiae. The unique feature of this assay is that it allows detection of a gain of the marked chromosomes even if there is a gain of the entire set of chromosomes (increase-in-ploidy). This assay was used to screen for chromosome-gain or increase-in-ploidy mutants. Five complementation groups have been defined for recessive mutations that confer an increase-in-ploidy (ipl) phenotype, which, in each case, cosegregates with a temperature-sensitive growth phenotype. Four new alleles of CDC31, which is required for spindle pole body duplication, were also recovered from this screen. Temperature-shift experiments with ipl1 cells show that they suffer severe nondisjunction at 37 degrees. Similar experiments with ipl2 cells show that they gain entire sets of chromosomes and become arrested as unbudded cells at 37 degrees. Molecular cloning and genetic mapping show that IPL1 is a newly identified gene, whereas IPL2 is allelic to BEM2, which is required for normal bud growth.
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DOI:
10.1126/science.7046050
发表时间:
1982
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Shortle,D;Haber,JE;Botstein,D
通讯作者:
Botstein,D
影响因子:
3.3
作者:
D. Schild;H. Ananthaswamy;R. Mortimer
通讯作者:
R. Mortimer
影响因子:
3.3
作者:
Winston,F;Chaleff,DT;Valent,B;Fink,GR
通讯作者:
Fink,GR
影响因子:
56.9
作者:
LEMMON, SK;JONES, EW
通讯作者:
JONES, EW
影响因子:
7.8
作者:
Snyder, M;Gehrung, S;Page, B D
通讯作者:
Page, B D