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New aspects of chromosomal evolution in the gorilla and the orangutan

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It is well-accepted that studies of chromosomal changes which have occurred during the evolution of the great apes and the human provide clues towards the phylogeny of these species. Applying recently developed molecular cytogenetic approaches, this study on the chromosomes of the orangutan and the gorilla revealed the presence of cryptic, until now, unrecognized cytogenetic rearrangements mainly within the evolutionary dynamic subcentromeric and subtelomeric regions. On four orangutan chromosomes new rearrangements were detected such as a pericentric inversion in Pongo pygmaeus abeli (PPYa) #1, complex rearrangements on #2 of Pongo pygmaeus pygmaeus (PPYp) and PPYa and a subtelomeric deletion on PPYa&p #19. Additionally, the first centromere repositioning in the great apes was detected on PPYa&p #8. Moreover, the breakpoints of four pericentric inversions within the two orangutan subspecies and three pericentric inversions on Gorilla beringei beringei (GBEb) chromosomes #3, #11 and #13 were refined. The new molecular cytogenetic findings are discussed and compared with the available literature.
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Document Type: Research Article

Affiliations: Institute of Human Genetics and Anthropology, D-07740 Jena, Germany

Publication date: March 1, 2007

More about this publication?
  • The International Journal of Molecular Medicine is a monthly, peer-reviewed journal devoted to the publication of high quality studies related to the molecular mechanisms of human disease. The journal welcomes research on all aspects of molecular and clinical research, ranging from biochemistry to immunology, pathology, genetics, human genomics, microbiology, molecular pathogenesis, molecular cardiology, molecular surgery and molecular psychology.

    The International Journal of Molecular Medicine aims to provide an insight for researchers within the community in regard to developing molecular tools and identifying molecular targets for the diagnosis and treatment of a diverse number of human diseases.
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