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      A myb gene required for leaf trichome differentiation in Arabidopsis is expressed in stipules

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      Cell
      Elsevier BV

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          Abstract

          The GL1 gene is required for the initiation of differentiation of hair cells (trichomes) on the crucifer, Arabidopsis thaliana. This gene has been localized to a 4.5 kb DNA fragment by molecular complementation of gl1 mutants. DNA sequence analysis has shown that the protein encoded by GL1 contains a Myb DNA-binding motif. Southern analysis and subsequence analysis of isolated lambda clones has established that GL1 is a member of an extensive myb gene family in Arabidopsis. The putative GL1 promoter directs the expression of the GUS reporter gene in non-trichome-bearing structures that appear to be stipules. This pattern of expression suggests that GL1 may control the synthesis of a diffusible signal that activates the developmental pathway for trichome differentiation.

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          Author and article information

          Journal
          Cell
          Cell
          Elsevier BV
          00928674
          November 1991
          November 1991
          : 67
          : 3
          : 483-493
          Article
          10.1016/0092-8674(91)90523-2
          1934056
          454c6964-378e-4618-9b8e-3317bf9ca073
          © 1991

          https://www.elsevier.com/tdm/userlicense/1.0/

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