Affiliation:
1. Laboratory of Plant Molecular Genetics, Nara Institute of Science and Technology, 8916-5 Takayama, Ikoma 630-0101, Japan.
Abstract
Florigen, the mobile signal that moves from an induced leaf to the shoot apex and causes flowering, has eluded identification since it was first proposed 70 years ago. Understanding the nature of the mobile flowering signal would provide a key insight into the molecular mechanism of floral induction. Recent studies suggest that the
Arabidopsis FLOWERING LOCUS T
(
FT
) gene is a candidate for encoding florigen. We show that the protein encoded by
Hd3a
, a rice ortholog of
FT
, moves from the leaf to the shoot apical meristem and induces flowering in rice. These results suggest that the Hd3a protein may be the rice florigen.
Publisher
American Association for the Advancement of Science (AAAS)
Cited by
970 articles.
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