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  1. ...recently acquired by the Y by means of LINE-mediated illegitimate recombination ( Charchar et al. 2003 ). The recombination rate in PAR2 is reportedly much lower than in PAR1 ( Lien et al. 2000 ). Extant and ancestral pseudoautosomal boundaries (PABs) To the best of our knowledge, extant PABs have only...
  2. ...Abstract The pseudoautosomal region (PAR) of mammalian sex chromosomes is a small region of sequence identity that is the site of an obligatory pairing and recombination event between the X and Y chromosomes during male meiosis. During female meiosis, X chromosomes can pair and recombine along...
  3. .../or selection at linked loci on the Y ( Charlesworth 1990 ). However, pseudoautosomal regions 1 and 2 (PAR1 and PAR2) at the termini of the short and long arms of X and Y chromosomes still recombine during male meiosis, ensuring X-Y nucleotide sequence identity that is necessary for normal male meiosis...
  4. ..., M., El-Mogharbel, N., Ventura, M., Kirby, P., Matarazzo, M.R., Ciccodicola, A., Rocchi, M., D'Esposito, M., and Graves, J.A. 2003 . Complex events in the evolution of the human PAR2. Genome Res. 13 : 281 -286. ↵ Chen, F.-C. and Li, W.-H. 2001 . Genomic divergences between humans and other hominoids...
  5. ...Region 1 (PAR1) and mapping 80 to 110 kb from Xpter ( Gianfrancesco et al. 1998 ), was used as a telomeric Xp marker. A cosmid clone (U130F6) containing the HSPRY3 gene was used as a marker of the Xqter region. HSPRY3 maps inside the PAR2, approximately 250 kb from the Xq telomere ( Ciccodicola et al...
  6. ...of the two pseudoautosomal regions (PAR1, PAR2), the X and Y Chromosomes have diverged in sequence. The locations of protein-coding genes and multicopy gene families in the male-specific region of the human Y Chromosome (MSY; blue) are shown at right. The X-linked homologs of MSY genes are annotated...
  7. ...of these approaches limits their application tomapping largemicroscopic events that disrupt visible patterns (typically at the megabase-scale), and their low throughput limits the number of cells or individuals that can be studied at a time (Youings et al. 2004; Zody et al. 2008; Antonacci et al. 2009; Feuk 2010...
  8. .... In contrast, duplicons from the Yq11.1/Yq11.21, Yq11.23/Yq12, and Yq12/PAR2 regions show no evidence of duplication in rhesus macaque, but map to the pericentromeric regions in chimpanzee and human. This suggests an evolutionary shift in the direction of duplicative transposition events from subtelomeric...
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