The R2R3-MYB gene family in Arabidopsis thaliana

• Published in: Current Opinion in Plant Biology Vol. 4; no. 5; pp. 447 - 456
• Main Authors: Stracke, Ralf, Werber, Martin, Weisshaar, Bernd
• Format: Book Review Journal Article
• Language: English
• Published: England Elsevier Ltd 01.10.2001
• Subjects: Arabidopsis; Arabidopsis - genetics; Arabidopsis - metabolism; Arabidopsis Proteins - classification; Arabidopsis Proteins - genetics; Arabidopsis Proteins - physiology; Arabidopsis thaliana; c-Myb protein; DNA-Binding Proteins - classification; DNA-Binding Proteins - genetics; DNA-Binding Proteins - physiology; gene family; Genes, Plant; Multigene Family; MYB gene; MYB3R; Phylogeny; Plant Proteins - classification; Plant Proteins - genetics; Plant Proteins - physiology; Proto-Oncogene Proteins c-myb; R2R3 gene; R2R3-MYB; ranscription factor; Sequence Alignment; Trans-Activators - classification; Trans-Activators - genetics; Trans-Activators - physiology; Transcription Factors; R2R3-MYB; MYB3R; gene family; Arabidopsis; ranscription factor; Plant biology; Genetics
• ISSN: 1369-5266; 1879-0356
• DOI: 10.1016/S1369-5266(00)00199-0

MYB factors represent a family of proteins that include the conserved MYB DNA-binding domain. In contrast to animals, plants contain a MYB-protein subfamily that is characterised by the R2R3-type MYB domain. ‘Classical’ MYB factors, which are related to c-Myb, seem to be involved in the control of the cell cycle in animals, plants and other higher eukaryotes. Systematic screens for knockout mutations in MYB genes, followed by phenotypic analyses and the dissection of mutants with interesting phenotypes, have started to unravel the functions of the 125 R2R3-MYB genes in Arabidopsis thaliana. R2R3-type MYB genes control many aspects of plant secondary metabolism, as well as the identity and fate of plant cells.