Longo E, Vezinhet F
Laboratoire de Microbiologie et Technologie des Fermentations, Institut National de la Recherche Agronomique, Montpellier, France.
Appl Environ Microbiol. 1993 Jan;59(1):322-6. doi: 10.1128/aem.59.1.322-326.1993.
Electrophoretic karyotypes of two strains of Saccharomyces cerevisiae, a haploid laboratory strain and a wild strain known to be at least diploid, have been checked during vegetative growth. The karyotype of the haploid strain was very stable; however, the diploid strain underwent frequent modifications. In most cases the number of bands was reduced, but occasionally we observed one band splitting into two. In one case, chromosomal rearrangements took place between differently sized copies of chromosomes I and VI. We concluded that the chromosome length polymorphism observed among wild strains of S. cerevisiae could be explained partly by chromosomal structure reorganization occurring during mitosis.
在营养生长期间，对酿酒酵母的两个菌株（一个单倍体实验室菌株和一个已知至少为二倍体的野生菌株）的电泳核型进行了检查。单倍体菌株的核型非常稳定；然而，二倍体菌株经历了频繁的变化。在大多数情况下，条带数量减少，但偶尔我们观察到一条带分裂成两条。在一个案例中，染色体I和VI大小不同的拷贝之间发生了染色体重排。我们得出结论，酿酒酵母野生菌株中观察到的染色体长度多态性部分可以由有丝分裂期间发生的染色体结构重组来解释。
