MUS81 Generates a Subset of MLH1-MLH3–Independent Crossovers in Mammalian Meiosis
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چکیده
منابع مشابه
MUS81 Generates a Subset of MLH1-MLH3–Independent Crossovers in Mammalian Meiosis
Two eukaryotic pathways for processing double-strand breaks (DSBs) as crossovers have been described, one dependent on the MutL homologs Mlh1 and Mlh3, and the other on the structure-specific endonuclease Mus81. Mammalian MUS81 has been implicated in maintenance of genomic stability in somatic cells; however, little is known about its role during meiosis. Mus81-deficient mice were originally re...
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In most eukaryotes, the prospective chromosomal positions of meiotic crossovers are marked during meiotic prophase by protein complexes called late recombination nodules (LNs). In tomato (Solanum lycopersicum), a cytological recombination map has been constructed based on LN positions. We demonstrate that the mismatch repair protein MLH1 occurs in LNs. We determined the positions of MLH1 foci a...
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Homologous recombination (HR) is required to promote both correct chromosome segregation and genetic variation during meiosis. For this to be successful recombination intermediates must be resolved to generate reciprocal exchanges or 'crossovers' between the homologous chromosomes (homologues) during the first meiotic division. Crossover recombination promotes faithful chromosome segregation by...
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ژورنال
عنوان ژورنال: PLoS Genetics
سال: 2008
ISSN: 1553-7404
DOI: 10.1371/journal.pgen.1000186