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Originally published as Genetics Published Articles Ahead of Print on July 29, 2007.
Genetics, Vol. 177, 1217-1220, October 2007, Copyright © 2007
doi:10.1534/genetics.107.078709
Evolutionary History and Positional Shift of a Rice Centromere
Jianxin Ma*,
Rod A. Wing
,
Jeffrey L. Bennetzen
and
Scott A. Jackson*,1
* Department of Agronomy, Purdue University, West Lafayette, Indiana 47907, Arizona Genomics Institute, University of Arizona, Tucson, Arizona 85721 and Department of Genetics, University of Georgia, Athens, Georgia 30602
1 Corresponding author: Department of Agronomy, Purdue University, 915 W. State St., West Lafayette, IN 47907.
E-mail: sjackson{at}purdue.edu
Rice centromere 8 was previously proposed to be an "immature" centromere that recently arose from a genic region. Our comparative genomics analysis indicates that Cen8 was formed at its current location at least 7–9 million years ago and was physically shifted by a more recent inversion of a segment spanning centromeric and pericentromeric regions.
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