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Genetics, Vol. 176, 1359-1362, June 2007, Copyright © 2007
doi:10.1534/genetics.107.070649
DICER-LIKE 1 and DICER-LIKE 3 Redundantly Act to Promote Flowering via Repression of FLOWERING LOCUS C in Arabidopsis thaliana
Robert J. Schmitz*,
Lewis Hong
,
Kathleen E. Fitzpatrick and
Richard M. Amasino*,,1
* Laboratory of Genetics and Department of Biochemistry, University of Wisconsin, Madison, Wisconsin 53706
1 Corresponding author: Department of Biochemistry, 433 Babcock Dr., University of Wisconsin, Madison, WI 53706.
E-mail: amasino{at}biochem.wisc.edu
In Arabidopsis thaliana, DICER-LIKE 1 and DICER-LIKE 3 are involved in the generation of small RNAs. Double mutants between dicer-like 1 and dicer-like 3 exhibit a delay in flowering that is caused by increased expression of the floral repressor FLOWERING LOCUS C. This delayed-flowering phenotype is similar to that of autonomous-pathway mutants, and the flowering delay can be overcome by vernalization.
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