Plant Molecular Biology

, Volume 55, Issue 3, pp 389–398 | Cite as

ENHANCER of TRYand CPC 2(ETC2) reveals redundancy in the region-specific control of trichome development of Arabidopsis

  • Victor Kirik
  • Marissa Simon
  • Katja Wester
  • John Schiefelbein
  • Martin Hulskamp


>An evolutionarily conserved set of proteins consisting of MYB and bHLH transcription factors and a WD40 domain protein is known to act in concert to control various developmental processes including trichome and root hair development. Their function is difficult to assess because most of them belong to multigene families and appear to act in a redundant fashion. In this study we identified an enhancer of the two root hair and trichome patterning mutants triptychon (try) and caprice (cpc), enhancer of try and cpc2 (etc2). The ETC2 gene shows high sequence similarity to the single-repeat MYB genes CPC and TRY. Overexpression results in the suppression of trichomes and overproduction of root hairs similarly as observed for TRY and CPC suggesting that ETC2 has similar biochemical properties. The etc2 single mutant shows an increase in trichome number on leaves and petiols. Double and triple mutant analysis indicates that the ETC2 gene acts redundant with TRY and CPC in trichome patterning.


Root Hair Biochemical Property Single Mutant Multigene Family High Sequence Similarity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Kluwer Academic Publishers 2004

Authors and Affiliations

  • Victor Kirik
    • 1
  • Marissa Simon
    • 2
  • Katja Wester
    • 1
  • John Schiefelbein
    • 2
  • Martin Hulskamp
    • 1
  1. 1.Botanical InstituteUniversity of CologneGyrhofstraße 15Germany
  2. 2.Department of Molecular, Cellular, and Developmental BiologyUniversity of MichiganGyrhofstraße 15USA

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