Sanchez, Aurore Reginato, Giordano Cejka, Petr 2021-07-20 DNA breaks may arise accidentally in vegetative cells or in a programmed manner in meiosis. The usage of a DNA template makes homologous recombination potentially error-free, however, recombination is not always accurate. Cells possess a remarkable capacity to tailor processing of recombination intermediates to fulfill a particular need. Vegetatively growing cells aim to maintain genome stability and therefore repair accidental breaks largely accurately, using sister chromatids as templates, into mostly non-crossovers products. Recombination in meiotic cells is instead more likely to employ homologous chromosomes as templates and result in crossovers to allow proper chromosome segregation and promote genetic diversity. Here we review models explaining the processing of recombination intermediates in vegetative and meiotic cells and its regulation, with a focus on MLH1-MLH3-dependent crossing-over during meiotic recombination. application/pdf https://n2t.net/ark:/12658/srd1319231 https://susi.usi.ch/global/documents/319231 https://susi.usi.ch/documents/319231/files/Cejka_coigd_2021.pdf eng info:eu-repo/semantics/altIdentifier/doi/10.1016/j.gde.2021.06.012 info:eu-repo/semantics/altIdentifier/ark/12658/srd1319231 info:eu-repo/semantics/openAccess CC BY-NC-ND Current opinion in genetics & development. - Elsevier. - 2021, vol. 71, p. 39-47 info:eu-repo/classification/udc/60 Crossover or non-crossover outcomes : tailored processing of homologous recombination intermediates http://purl.org/coar/resource_type/c_6501