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FPF1 modulates the competence to flowering in Arabidopsis by Siegbert Melzer; Grit Kampmann; John Chandler; Klaus Apel is a Agricultural and Biological Sciences article available to read on EtoBox.

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## Summary During the transition to flowering the __FPF1__ gene is expressed in the peripheral zone of apical meristems and in floral meristems of __Arabidopsis. Constitutive expression of__ FPF1 __causes early flowering in__ Arabidopsis __under both long‐day and short‐day conditions and leads to a shortened juvenile phase as measured by the trichome distribution on the abaxial leaf surface. In the classical late flowering mutants, overexpression of__ FPF1 __compensates partially for the late flowering phenotype, indicating that__ FPF1 __acts downstream or in a parallel pathway to the mutated genes. The co‐overexpression of__ 35S::AP1 __with__ 35S::FPF1 __leads to a synergistic effect on the shortening of the time to flowering under short‐day conditions. The co‐overexpression of__ 35S::FPF1 and 35S::LFY, however, shows only an additive reduction of flowering time and the conversion of nearly every shoot meristem, except the inflorescence meristem, to a floral meristem under the same light conditions. In addition, the constitutive expression of __FPF1__ attenuates the severe __lfy‐1__ phenotype under short days and phenocopies to a great extent the __lfy‐1__ mutant grown under long‐

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Author

Siegbert Melzer; Grit Kampmann; John Chandler; Klaus Apel

Publisher

John Wiley and Sons; Wiley (Blackwell Publishing); Blackwell Publishing Inc.; Wiley (ISSN 0960-7412)

Published

1999

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)