A member of the KNOTTED class of homeodomain proteins encoded by the STM gene of Arabidopsis (original) (raw)

Nature volume 379, pages 66–69 (1996)Cite this article

Abstract

THE KNOTTED class of plant genes encodes homeodomain proteins1,2. These genes have been found in all plant species where they have been sought3–5 and, where examined, show expression patterns that suggest they play an important role in shoot meristem function5–7. Until now, all mutant phenotypes associated with these genes have been due to gain-of-function mutations4,5,8,9, making it difficult to deduce their wild-type function. Here we present evidence that the Arabidopsis SHOOT-MERISTEMLESS (STM) gene, required for shoot apical meristem formation during embryogenesis, encodes a class I KNOTTED-like protein. We also describe the expression pattern of this gene in the wild-type plant. To our knowledge, STM is the first gene shown to mark a specific pattern element in the developing plant embryo both phenotypically and molecularly.

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Authors and Affiliations

  1. Department of Genetics, University of Wisconsin-Madison, Madison, Wisconsin, 53706, USA
    Erich I. Moan & M. Kathryn Barton
  2. Program in Cellular and Molecular Biology, University of Wisconsin-Madison, Madison, Wisconsin, 53706, USA
    Jeff A. Long
  3. Department of Biology, 506 Wartik Laboratory, Pennsylvania State University, College Park, Pennsylvania, 16802, USA
    June I. Medford

Authors

  1. Jeff A. Long
  2. Erich I. Moan
  3. June I. Medford
  4. M. Kathryn Barton

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Long , J., Moan, E., Medford, J. et al. A member of the KNOTTED class of homeodomain proteins encoded by the STM gene of Arabidopsis.Nature 379, 66–69 (1996). https://doi.org/10.1038/379066a0

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