Journal
PLANT CELL
Volume 15, Issue 8, Pages 1934-1944Publisher
OXFORD UNIV PRESS INC
DOI: 10.1105/tpc.011809
Keywords
-
Ask authors/readers for more resources
Here, we report the identification of Karma, a LINE-type retrotransposon of plants for which continuous retrotransposition was observed in consecutive generations. The transcription of Karma is activated in cultured cells of rice upon DNA hypomethylation. However, transcription is insufficient for retrotransposition, because no increase in the copy number was observed in cultured cells or in the first generation of plants regenerated from them. Despite that finding, copy number increase was detected in the next generation of regenerated plants as well as in later generations, suggesting that the post-transcriptional regulation of Karma retrotransposition is development dependent. Our results indicate that two different mechanisms, one transcriptional and the other developmental, control the mobilization of Karma. In addition, unlike other known active plant retrotransposons, Karma is not subject to de novo methylation, and retrotransposition persists through several generations.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available