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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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

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.[1]

References

  1. A myb gene required for leaf trichome differentiation in Arabidopsis is expressed in stipules. Oppenheimer, D.G., Herman, P.L., Sivakumaran, S., Esch, J., Marks, M.D. Cell (1991) [Pubmed]
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