Roles of Rice GL2-type Homeobox Genes in Epidermis Differentiation

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概要

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• GL2-type genes have been recognized as plant-specific homeobox genes involved in epidermis development. Here we report the isolation and characterization of rice GL2-type homeobox genes. The BLAST searches using the rice genomic database revealed that there are at least nine GL2-type homeobox genes (Roc1-Roc9) in the rice genome. Among them, we have isolated full cDNA clones of five Roc genes, including previously reported Roc1. GL2-type homeodomain proteins have a dimerization motif, consisting of two leucine zipper-like motifs (LZ1 and LZ2) interrupted by a loop, adjacent to the C-terminal part of the homeodomain. The Roc proteins can form both homo- and hetero-dimers through leucine zipper motifs in various combinations. In situ hybridization, RNA gel blot analysis and RT-PCR experiment revealed that the five Roc genes commonly showed an epidermis-specific expression, but partially differed in the temporal expression pattern. These results suggest that the Roc genes can regulate a variety of processes in epidermis differentiation in a combinatorial way.

• 日本育種学会の論文

著者

• Matsuoka Makoto

  Bioscience And Biotechnology Center Nagoya Univ.

• Matsuoka Makoto

  Bioscience And Biotechnology Center Nagoya University

• NISHIMURA Asuka

  Biocience Center, Nagoya University

• SENTOKU Naoki

  Biocience Center, Nagoya University

• Ito Momoyo

  BioScience Center, Nagoya University

• Sentoku Naoki

  BioScience Center, Nagoya University

• Nishimura Asuka

  BioScience Center, Nagoya University

• Hong Soon-Kwan

  BioScience Center, Nagoya University

• Sato Yutaka

  BioScience Center, Nagoya University

• MIYAO-TOKUTOMI Mitsue

  National Institute of Agrobiological Resources

• Matsuoka M

  Bioscience And Biotechnology Center Nagoya University

• Sentoku N

  Biocience Center Nagoya University

• Sentoku Naoki

  Biosci. Cen. Nagoya University

• Sentoku Naoki

  Bioscience Ctr. Nagoya Univ.

• Hong Soon-kwan

  Bioscience Center Nagoya University

• Sato Yutaka

  Bioscience Center Nagoya University

• Nishimura Asuka

  Biocience Center Nagoya University

• Nishimura Asuka

  Bioscience Center Nagoya Univ.

• Matsuoka Makoto

  Okinawa Subtropical Station Japan International Research Center For Agricultural Sciences

• Ito Momoyo

  Bioscience Center Nagoya Univ.

• Matuoka Makoto

  Biosci. Cen. Nagoya University

• Matsuoka M

  Institute Of Agriculture And Forestry University Of Tsukuba

• Matsuoka Makoto

  Institute Of Agriculture And Forestry University Of Tsukuba

• Matsuoka Makoto

  Biosci. Center Nagoya Univ. Nagoya

• Miyao‐tokutomi Mitsue

  Niar Tsukuba.

• Sato Yutaka

  Bioscience Center Nagoya Univ.

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