Abstract
Recombinational repair was first detected in budding yeast Saccharomyces cerevisiae and was also studied in fission yeast Schizosaccharomyces pombe over the recent decade. The discovery of Sch. pombe homologs of the S. cerevisiae RAD52 genes made it possible not only to identify and to clone their vertebrate counterparts, but also to study in detail the role of DNA recombination in certain cell processes. For instance, recombinational repair was shown to play a greater role in maintaining genome integrity in fission yeast and in vertebrates compared with S. cerevisiae. The present state of the problem of recombinational double-strand break repair in fission yeast is considered with a focus on comparisons between Sch. pombe and higher eukaryotes. The role of double-strand break repair in maintaining genome stability is discussed.
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