The glossy1 Locus of Maize and an Epidermis-Specific cDNA from Kleinia odora Define a Class of Receptor-Like Proteins Required for the Normal Accumulation of Cuticular Waxes

Joel D. Hansen, Jaeho Pyee, Yiji Xia, Tsui Jung Wen, Donald S. Robertson, Papachan E. Kolattukudy, Basil J. Nikolau*, Patrick S. Schnable

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

63 Citations (Scopus)

Abstract

Mutations at the glossy1 (gl1) locus of maize (Zea mays L.) quantitatively and qualitatively affect the deposition of cuticular waxes on the surface of seedling leaves. The gl1 locus has been molecularly cloned by transposon tagging with the Mutator transposon system. The epi23 cDNA was isolated by subtractive hybridization as an epidermis-specific mRNA from Senecio odora (Kleinia odora). The deduced amino acid sequence of the GL1 and EPI23 proteins are very similar to each other and to two other plant proteins in which the sequences were deduced from their respective mRNAs. These are the Arabidopsis CER1 protein, which is involved in cuticular wax deposition on siliques, stems, and leaves of that plant, and the protein coded by the rice expressed sequence tag RICS2751A. All four proteins are predicted to be localized in a membrane via a common NH2-terminal domain, which consists of either five or seven membrane-spanning helices. The COOH-terminal portion of each of these proteins, although less conserved, is predicted to be a water-soluble, globular domain. These sequence similarities indicate that these plant orthologs may belong to a superfamily of membrane-bound receptors that have been extensively characterized from animals, including the HIV co-receptor fusin (also termed CXCR4).

Original languageEnglish
Pages (from-to)1091-1100
Number of pages10
JournalPlant Physiology
Volume113
Issue number4
DOIs
Publication statusPublished - Apr 1997

Scopus Subject Areas

  • Physiology
  • Genetics
  • Plant Science

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