A complementary role for ELF3 and TFL1 in the regulation of flowering time by ambient temperature, in Arabidopsis thaliana.

ABSTRACT: Plants regulate their time to flowering by gathering information from the environment. Photoperiod and temperature are among the most important environmental variables. Suboptimal, but not near-freezing, temperatures regulate flowering through the thermosensory pathway, which overlaps with the autonomous pathway. Here we show that ambient temperature regulates flowering by two genetically distinguishable pathways, one that requires TFL1 and another that requires ELF3. The delay in flowering time observed at lower temperatures was partially suppressed in single elf3 and tfl1 mutants, whereas double elf3 tfl1 mutants were insensitive to temperature. tfl1 mutations abolished the temperature response in cryptochrome mutants that are deficient in photoperiod perception, but not in phyB mutants

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Pablo Cerdan 

PROVIDER: E-GEOD-15689 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress