| Literature DB >> 22474258 |
James A Birchler1, Gernot G Presting.
Abstract
The centromeres of most eukaryotic organisms consist of highly repetitive arrays that are similar across nonhomologous chromosomes. These sequences evolve rapidly, thus posing a mystery as to how such arrays can be homogenized. Recent work in species in which centromere-enriched retrotransposons occur indicates that these elements preferentially insert into the centromeric regions. In two different Arabidopsis species, a related element was recognized in which the specificity for such targeting was altered. These observations provide a partial explanation for how homogenization of centromere DNA sequences occurs.Entities:
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Year: 2012 PMID: 22474258 PMCID: PMC3323874 DOI: 10.1101/gad.191049.112
Source DB: PubMed Journal: Genes Dev ISSN: 0890-9369 Impact factor: 11.361