Ordered Linear Tetrads Are Produced by the Sporulation of Newly Formed Zygotes of Saccharomyces cerevisiae.
Ordered Linear Tetrads Are Produced by the Sporulation of Newly Formed Zygotes of Saccharomyces cerevisiae.
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有序的线性四分体是由酿酒酵母新形成的受精卵的孢子形成产生的。
DOI：
10.1093/genetics/115.2.229
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发表时间：
1987
期刊：
影响因子：
3.3
通讯作者：
D. Botstein
中科院分区：
文献类型：
--
作者：
J. Thomas;D. Botstein
二倍体酿酒酵母菌株通常形成孢子，产生含有四个孢子（四分体）的四面体无序子囊。我们报告说，当新形成的受精卵经历相同的孢子形成条件时，它们主要形成线性有序四分体。我们表明，来自这种线性四分体两端的两个孢子总是含有非姐妹着丝粒。孢子活力、重组和着丝粒分离的独立性似乎不受影响。
Diploid Saccharomyces cerevisiae strains normally sporulate to produce tetrahedral unordered asci containing four spores (tetrads). We report that when newly formed zygotes are subjected to the same sporulation conditions, they form predominantly linear ordered tetrads. We show that the two spores from each end of such a linear tetrad invariably contain nonsister centromeres. Spore viability, recombination and independence of centromere segregation appear unaffected.