Meiotic double strand breaks repair in sexually reproducing eukaryotes: we are not all equal (Articolo in rivista)

Type
Label
  • Meiotic double strand breaks repair in sexually reproducing eukaryotes: we are not all equal (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1016/j.yexcr.2012.03.014 (literal)
Alternative label
  • La Volpe A, Barchi M. (2012)
    Meiotic double strand breaks repair in sexually reproducing eukaryotes: we are not all equal
    in Experimental cell research
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • La Volpe A, Barchi M. (literal)
Pagina inizio
  • 1333 (literal)
Pagina fine
  • 1339 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 318 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 12 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • PubMe (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Institute of Genetics and Biophysics 'Adriano Buzzati-Traverso' CNR, Via Pietro Castellino 111, Napoli 80131, Italy Department of Public Health and Cell Biology, section of Anatomy, University of Rome \"Tor Vergata\", Via Montpellier n.1, Rome 00133, Italy (literal)
Titolo
  • Meiotic double strand breaks repair in sexually reproducing eukaryotes: we are not all equal (literal)
Abstract
  • The defining event of meiosis is prophase-I, during which the maternal and paternal chromosome find each other in the nucleus, pair, and align in a process called \"synapses of the homologues.\" Their faithful segregation during the first meiotic division (MI) requires meiotic recombination and in particular at least one crossing over (CO) per pair of homologous chromosomes. COs are needed, not only to generate diversity within a population, but (along with sister chromatids cohesion) to form the chiasmata that are the physical connection between the homologues that ensures their faithful segregation at metaphase-I. Our understanding of recombination in higher eukaryotes has comes from studies in model organisms such as yeasts, flies and worms. Although there are clear differences among organisms, most of the genes and proteins that are required in these processes are conserved and have orthologues in mammals. However, their null mutations in mice (Mus musculus) do not always display the same phenotype as in lower eukaryotes, indicating that along with the increased complexity of the genome, same genes have acquired new or partially overlapping functions. In this review we will focus on the main genes and protein products which are required for meiotic recombination, comparing the simple metazoan C. elegans and the mouse, underlying divergences and similarities between these organisms. (literal)
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