Functional conservation and divergence of FVE genes that control flowering time and cold response in rice and Arabidopsis

Il Sun Baek, Hyo Young Park, Min Kyoung You, Jeong Hwan Lee, Jeong Kook Kim

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Recent molecular and genetic studies in rice, a short-day plant, have elucidated both conservation and divergence of photoperiod pathway genes and their regulators. However, the biological roles of rice genes that act within the autonomous pathway are still largely unknown. In order to better understand the function of the autonomous pathway genes in rice, we conducted molecular genetic analyses of OsFVE, a rice gene homologous to Arabidopsis FVE. OsFVE was found to be ubiquitously expressed in vegetative and reproductive organs. Overexpression of OsFVE could rescue the flowering time phenotype of the Arabidopsis fve mutants by up-regulating expression of the SUPPRESSOR OF OVEREXPRESSION OF CO1 (SOC1) and down-regulating FLOWERING LOCUS C (FLC) expression. These results suggest that there may be a conserved function between OsFVE and FVE in the control of flowering time. However, OsFVE overexpression in the fve mutants did not rescue the flowering time phenotype in in relation to the response to intermittent cold treatment.

Original languageEnglish
Pages (from-to)368-372
Number of pages5
JournalMolecules and cells
Volume26
Issue number4
Publication statusPublished - 2008 Oct 31

Keywords

  • Arabidopsis
  • Autonomous pathway
  • Cold response
  • FVE
  • Flowering
  • Rice

ASJC Scopus subject areas

  • Molecular Biology
  • Cell Biology

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