The Physcomitrella patens System for Transient Gene Expression Assays.
2016
Thévenin, Johanne | Xu, Wenjia | Vaisman, Louise | Lepiniec, Loic | Dubreucq, Bertrand | Dubos, Christian | Institut Jean-Pierre Bourgin (IJPB) ; Institut National de la Recherche Agronomique (INRA)-AgroParisTech | Institut National de la Recherche Agronomique (INRA) | Biochimie et Physiologie Moléculaire des Plantes (BPMP) ; Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)
Transient expression assays are valuable techniques to study in vivo the transcriptional regulation of gene expression. These methods allow to assess the transcriptional properties of a given transcription factor (TF) or a complex of regulatory proteins against specific DNA motifs, called cis-regulatory elements. Here, we describe a fast, efficient, and reliable method based on the use of Physcomitrella patens protoplasts that allows the study of gene expression in a qualitative and quantitative manner by combining the advantage of GFP (green fluorescent protein) as a marker of promoter activity with flow cytometry for accurate measurement of fluorescence in individual cells.
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