PMID- 18257913 OWN - NLM STAT- MEDLINE DCOM- 20080515 LR - 20211020 IS - 1474-760X (Electronic) IS - 1465-6906 (Print) IS - 1474-7596 (Linking) VI - 9 IP - 2 DP - 2008 TI - Hominoid chromosomal rearrangements on 17q map to complex regions of segmental duplication. PG - R28 LID - 10.1186/gb-2008-9-2-r28 [doi] AB - BACKGROUND: Chromosomal rearrangements, such as translocations and inversions, are recurrent phenomena during evolution, and both of them are involved in reproductive isolation and speciation. To better understand the molecular basis of chromosome rearrangements and their part in karyotype evolution, we have investigated the history of human chromosome 17 by comparative fluorescence in situ hybridization (FISH) and sequence analysis. RESULTS: Human bacterial artificial chromosome/p1 artificial chromosome probes spanning the length of chromosome 17 were used in FISH experiments on great apes, Old World monkeys and New World monkeys to study the evolutionary history of this chromosome. We observed that the macaque marker order represents the ancestral organization. Human, chimpanzee and gorilla homologous chromosomes differ by a paracentric inversion that occurred specifically in the Homo sapiens/Pan troglodytes/Gorilla gorilla ancestor. Detailed analyses of the paracentric inversion revealed that the breakpoints mapped to two regions syntenic to human 17q12/21 and 17q23, both rich in segmental duplications. CONCLUSION: Sequence analyses of the human and macaque organization suggest that the duplication events occurred in the catarrhine ancestor with the duplication blocks continuing to duplicate or undergo gene conversion during evolution of the hominoid lineage. We propose that the presence of these duplicons has mediated the inversion in the H. sapiens/P. troglodytes/G. gorilla ancestor. Recently, the same duplication blocks have been shown to be polymorphic in the human population and to be involved in triggering microdeletion and duplication in human. These results further support a model where genomic architecture has a direct role in both rearrangement involved in karyotype evolution and genomic instability in human. FAU - Cardone, Maria Francesca AU - Cardone MF AD - Department of Genetics and Microbiology, University of Bari, Via Amendola, Bari, 70126, Italy. mfcardone@biologia.uniba.it FAU - Jiang, Zhaoshi AU - Jiang Z FAU - D'Addabbo, Pietro AU - D'Addabbo P FAU - Archidiacono, Nicoletta AU - Archidiacono N FAU - Rocchi, Mariano AU - Rocchi M FAU - Eichler, Evan E AU - Eichler EE FAU - Ventura, Mario AU - Ventura M LA - eng GR - R01 GM058815/GM/NIGMS NIH HHS/United States GR - HHMI/Howard Hughes Medical Institute/United States PT - Comparative Study PT - Journal Article PT - Research Support, N.I.H., Extramural PT - Research Support, Non-U.S. Gov't DEP - 20080207 PL - England TA - Genome Biol JT - Genome biology JID - 100960660 SB - IM MH - Animals MH - Cats MH - *Chromosome Aberrations MH - Chromosomes, Artificial, Bacterial/genetics MH - Chromosomes, Human, Pair 17/*genetics MH - *Evolution, Molecular MH - Haplorhini/genetics MH - Humans MH - In Situ Hybridization, Fluorescence MH - Karyotyping MH - Sequence Analysis, DNA PMC - PMC2374708 EDAT- 2008/02/09 09:00 MHDA- 2008/05/16 09:00 PMCR- 2008/02/07 CRDT- 2008/02/09 09:00 PHST- 2007/12/05 00:00 [received] PHST- 2008/01/24 00:00 [revised] PHST- 2008/02/07 00:00 [accepted] PHST- 2008/02/09 09:00 [pubmed] PHST- 2008/05/16 09:00 [medline] PHST- 2008/02/09 09:00 [entrez] PHST- 2008/02/07 00:00 [pmc-release] AID - gb-2008-9-2-r28 [pii] AID - 10.1186/gb-2008-9-2-r28 [doi] PST - ppublish SO - Genome Biol. 2008;9(2):R28. doi: 10.1186/gb-2008-9-2-r28. Epub 2008 Feb 7.