Abstract:
:Detailed analyses of the clone-based genome assembly reveal that the recent duplication content of mouse (4.94%) is now comparable to that of human (5.5%), in contrast to previous estimates from the whole-genome shotgun sequence assembly. However, the architecture of mouse and human genomes differs markedly: most mouse duplications are organized into discrete clusters of tandem duplications that show depletion of genes and transcripts and enrichment of long interspersed nuclear element (LINE) and long terminal repeat (LTR) retroposons. We assessed copy number variation of the C57BL/6J duplicated regions within 15 mouse strains previously used for genetic association studies, sequencing and the Mouse Phenome Project. We determined that over 60% of these base pairs are polymorphic among the strains (on average, there was 20 Mb of copy-number-variable DNA between different mouse strains). Our data suggest that different mouse strains show comparable, if not greater, copy number polymorphism when compared to human; however, such variation is more locally restricted. We show large and complex patterns of interstrain copy number variation restricted to large gene families associated with spermatogenesis, pregnancy, viviparity, pheromone signaling and immune response.
journal_name
Nat Genetjournal_title
Nature geneticsauthors
She X,Cheng Z,Zöllner S,Church DM,Eichler EEdoi
10.1038/ng.172subject
Has Abstractpub_date
2008-07-01 00:00:00pages
909-14issue
7eissn
1061-4036issn
1546-1718pii
ng.172journal_volume
40pub_type
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