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Copyright 2007 by the Genetics Society of America DOI: 10.1534/genetics.107.070649
 

Summary: Copyright 2007 by the Genetics Society of America
DOI: 10.1534/genetics.107.070649
Note
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
Manuscript received January 12, 2007
Accepted for publication March 30, 2007
ABSTRACT
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.
THE transition from vegetative to reproductive de-
velopment is a highly regulated event in the plant
life cycle. In Arabidopsis there are several pathways that

  

Source: Amasino, Richard M. - Department of Biochemistry, University of Wisconsin at Madison

 

Collections: Biology and Medicine