EMF1, a novel protein involved in the control of shoot architecture and flowering in Arabidopsis

D. Aubert, L. Chen, Y.-H. Moon, D. Martin, L.A. Castle, C.-H. Yang, Z.R. Sung

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    Shoot architecture and flowering time in angiosperms depend on the balanced expression of a large number of flowering time and flower meristem identity genes. Loss-of-function mutations in the Arabidopsis EMBRYONIC FLOWER (EMF) genes cause Arabidopsis to eliminate rosette shoot growth and transform the apical meristem from indeterminate to determinate growth by producing a single terminal flower on all nodes. We have identified the EMF1 gene by positional cloning. The deduced polypeptide has no homology with any protein of known function except a putative protein in the rice genome with which EMF1 shares common motifs that include nuclear localization signals, P-loop, and LXXLL elements. Alteration of EMF1 expression in transgenic plants caused progressive changes in flowering time, shoot determinacy, and inflorescence architecture. EMF1 and its related sequence may belong to a new class of proteins that function as transcriptional regulators of phase transition during shoot development.
    Original languageEnglish
    JournalPlant Cell
    Volume13
    Issue number8
    Pages (from-to)1865-1875
    ISSN1040-4651
    DOIs
    Publication statusPublished - 2001

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