Format

Send to

Choose Destination
See comment in PubMed Commons below
Genetics. 2008 Nov;180(3):1467-74. doi: 10.1534/genetics.108.088096. Epub 2008 Sep 14.

Suppression of pleiotropic effects of functional cryptochrome genes by Terminal Flower 1.

Author information

  • 1IFEVA, Fisiología Vegetal, Facultad de Agronomía, Universidad de Buenos Aires, Buenos Aires, Argentina.

Abstract

TERMINAL FLOWER 1 (TFL1) encodes a protein with similarity to animal phosphatidylethanolamine-binding proteins and is required for normal trafficking to the protein storage vacuole. In Arabidopsis thaliana the tfl1 mutation produces severe developmental abnormalities. Here we show that most aspects of the tfl1 phenotype are lost in the cry1 cry2 double-mutant background lacking cryptochromes 1 and 2. The inhibition of hypocotyl growth by light is reduced in the tfl1 mutant but this effect is absent in the cry1 or cry2 mutant background. Although the promotion of flowering under long rather than short days is a key function of cryptochromes, in the tfl1 background, cryptochromes promoted flowering under short days. Thus, normal CRY control of photoperiod-dependent flowering and hypocotyl growth inhibition requires a functional TFL1 gene.

PMID:
18791256
PMCID:
PMC2581949
DOI:
10.1534/genetics.108.088096
[PubMed - indexed for MEDLINE]
Free PMC Article
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for HighWire Icon for PubMed Central
    Loading ...
    Support Center