Gorilla genome structural variation reveals evolutionary parallelisms with chimpanzee
Structural variation has played an important role in the evolutionary restructuring of human and great ape genomes. Recent analyses have suggested that the genomes of chimpanzee and human have been particularly enriched for this form of genetic variation. Here, we set out to assess the extent of structural variation in the gorilla lineage by generating 10-fold genomic sequence coverage from a western lowland gorilla and integrating these data into a physical and cytogenetic framework of structural variation. We discovered and validated over 7665 structural changes within the gorilla lineage, including sequence resolution of inversions, deletions, duplications, and mobile element insertions. A comparison with human and other ape genomes shows that the gorilla genome has been subjected to the highest rate of segmental duplication. We show that both the gorilla and chimpanzee genomes have experienced independent yet convergent patterns of structural mutation that have not occurred in humans, including the formation of subtelomeric heterochromatic caps, the hyperexpansion of segmental duplications, and bursts of retroviral integrations. Our analysis suggests that the chimpanzee and gorilla genomes are structurally more derived than either orangutan or human genomes. © 2011 by Cold Spring Harbor Laboratory Press.
Main Authors: | Ventura, Mario, Catacchio, Claudia R., Alkan, Can, Marqués-Bonet, Tomàs, Sajjadian, Saba, Graves, Tina A., Hormozdiari, Fereydoun, Navarro, Arcadi, Malig, Maika, Baker, Carl, Lee, Choli, Turner, Emily H., Chen, Lin, Kidd, Jeffrey M., Archidiacono, Nicoletta, Shendure, Jay, Wilson, Richard K., Eichler, Evan E. |
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Other Authors: | National Institutes of Health (US) |
Format: | artículo biblioteca |
Language: | English |
Published: |
Cold Spring Harbor Laboratory Press
2011-06
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Online Access: | http://hdl.handle.net/10261/50535 http://dx.doi.org/10.13039/100000002 http://dx.doi.org/10.13039/501100004837 http://dx.doi.org/10.13039/501100000780 |
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