Publication Date:
2005-07-26
Description:
The genome organizations of eight phylogenetically distinct species from five mammalian orders were compared in order to address fundamental questions relating to mammalian chromosomal evolution. Rates of chromosome evolution within mammalian orders were found to increase since the Cretaceous-Tertiary boundary. Nearly 20% of chromosome breakpoint regions were reused during mammalian evolution; these reuse sites are also enriched for centromeres. Analysis of gene content in and around evolutionary breakpoint regions revealed increased gene density relative to the genome-wide average. We found that segmental duplications populate the majority of primate-specific breakpoints and often flank inverted chromosome segments, implicating their role in chromosomal rearrangement.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Murphy, William J -- Larkin, Denis M -- Everts-van der Wind, Annelie -- Bourque, Guillaume -- Tesler, Glenn -- Auvil, Loretta -- Beever, Jonathan E -- Chowdhary, Bhanu P -- Galibert, Francis -- Gatzke, Lisa -- Hitte, Christophe -- Meyers, Stacey N -- Milan, Denis -- Ostrander, Elaine A -- Pape, Greg -- Parker, Heidi G -- Raudsepp, Terje -- Rogatcheva, Margarita B -- Schook, Lawrence B -- Skow, Loren C -- Welge, Michael -- Womack, James E -- O'brien, Stephen J -- Pevzner, Pavel A -- Lewin, Harris A -- N01-CO-12400/CO/NCI NIH HHS/ -- R01CA-92167/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2005 Jul 22;309(5734):613-7.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, TX 77843, USA. wmurphy@cvm.tamu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/16040707" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Cats/genetics
;
Cattle/genetics
;
Centromere/genetics
;
Chromosomal Instability
;
Chromosome Aberrations
;
*Chromosome Breakage
;
Chromosome Inversion
;
Chromosome Mapping
;
Chromosomes, Human/genetics
;
Chromosomes, Mammalian/*genetics
;
Computational Biology
;
Dogs/genetics
;
*Evolution, Molecular
;
*Genome
;
Genome, Human
;
Horses/genetics
;
Humans
;
Mammals/*genetics
;
Mice/genetics
;
Neoplasms/genetics
;
Rats/genetics
;
Swine/genetics
;
*Synteny
;
Telomere/genetics
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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