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VAPYRIN-like is required for development of the moss Physcomitrella patens

  • Rathgeb, Ursina Department of Biology, University of Fribourg, 1700-Fribourg, Switzerland
  • Chen, Min Department of Biology, University of Fribourg, 1700-Fribourg, Switzerland
  • Buron, Flavien Department of Biology, University of Fribourg, 1700-Fribourg, Switzerland
  • Feddermann, Nadja Department of Biology, University of Fribourg, 1700-Fribourg, Switzerland
  • Schorderet, Martine Department of Biology, University of Fribourg, 1700-Fribourg, Switzerland
  • Raisin, Axelle Department of Biology, University of Fribourg, 1700-Fribourg, Switzerland
  • Häberli, Gabrielle-Yasymi Department of Biology, University of Fribourg, 1700-Fribourg, Switzerland
  • Marc-Martin, Sophie Institut de Biologie, Université de Neuchâtel, 2000-Neuchâtel, Switzerland
  • Keller, Jean Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, Auzeville, 31326 Castanet Tolosan, France
  • Delaux, Pierre-Marc Laboratoire de Recherche en Sciences Végétales, Université de Toulouse, CNRS, Auzeville, 31326 Castanet Tolosan, France
  • Schaefer, Didier G. Institut de Biologie, Université de Neuchâtel, 2000-Neuchâtel, Switzerland
  • Reinhardt, Didier Department of Biology, University of Fribourg, 1700-Fribourg, Switzerland
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    01.06.2020
Published in:
  • Development. - 2020, vol. 147, no. 11, p. dev184762
English The VAPYRIN (VPY) gene in Medicago truncatula and Petunia hybrida is required for arbuscular mycorrhizal (AM) symbiosis. The moss Physcomitrella patens has a close homolog (VPY-like, VPYL), although it does not form AM. Here, we explore the phylogeny of VPY and VPYL in land plants, and study the expression and developmental function of VPYL in P. patens. We show that VPYL is expressed primarily in the protonema, the early filamentous stage of moss development, and later in rhizoids arising from the leafy gametophores and in adult phyllids. Knockout mutants have specific phenotypes in branching of the protonema and in cell division of the leaves (phyllids) in gametophores. The mutants are responsive to auxin and strigolactone, which are involved in regulation of protonemal branching, indicating that hormonal signaling in the mutants is not affected in hormonal signaling. Taken together, these results suggest that VPYL exerts negative regulation of protonemal branching and cell division in phyllids. We discuss VPY and VPYL phylogeny and function in land plants in the context of AM symbiosis in angiosperms and development in the moss.
Faculty
Faculté des sciences et de médecine
Department
Département de Biologie
Language
  • English
Classification
Biology
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/308692
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