Originally published as Genetics Published Articles Ahead of Print on March 2, 2009.

Genetics, Vol. 182, 399-402, May 2009, Copyright © 2009
doi:10.1534/genetics.109.101527

Excision of Helitron Transposons in Maize

* Waksman Institute, Rutgers University, Piscataway, New Jersey 08855 and {dagger} Department of Plant Biology, Rutgers University, New Brunswick, New Jersey 08901

1 Corresponding author: Waksman Institute, Rutgers University, Piscataway, NJ 08855.
E-mail: dooner{at}waksman.rutgers.edu

Helitrons are novel transposons discovered by bioinformatic analysis of eukaryotic genome sequences. They are believed to move by rolling circle (RC) replication because their predicted transposases are homologous to those of bacterial RC transposons. We report here evidence of somatic Helitron excision in maize, an unexpected finding suggesting that Helitrons can exhibit an excisive mode of transposition.


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Genetics 2009 182: NP. [Full Text]