MYB transcription-factor families in plants
Rice and Arabidopsis encode large MYB families dominated by R2R3 types with distinct expression patterns.
Source
Genome-wide classification and expression analysis of MYB transcription factor families in rice and Arabidopsis
Study at a glance
- Design
- Computational / modelling — Genome-wide identification and classification of MYB genes with expression analysis
- N
- 155 rice and 197 Arabidopsis MYB genes catalogued — gene-family survey, not a sample-N study
- Population
- Rice and Arabidopsis genomes
- Outcome
- MYB transcription-factor repertoire and subclass distribution
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MYB transcription-factor families in plants
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MYB transcription factors.
DNA-binding and an activation/repression domain, that function together to regulate the target gene expression []. The MYB ( my elo b lastosis) transcription factor family is present in all eukaryotes.
Rice and Arabidopsis.
Oncogene" v MYB was the first MYB gene identified in avian myeloblastosis virus [].
What they did
Identified/classified MYB genes genome-wide and analyzed structures plus expression.
What they found
155 rice and 197 Arabidopsis MYB genes; R2R3 is the largest subclass.
The limits
What it doesn't show
Classification is sequence-based; not every gene’s phenotype is functionally validated here.
Key terms
- MYB
- Myeloblastosis-related DNA-binding TF.
- R2R3-MYB
- Two-repeat plant MYB class.
- Transcription factor
- Protein regulating transcription.
- Rice
- Oryza sativa model crop.
- Arabidopsis
- Plant model organism.
- Helix-turn-helix
- MYB DNA-binding fold.
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Common questions
Rice MYBs?
155.
Arabidopsis MYBs?
197.
Largest class?
R2R3.
Focus?
TF family.
More on Gene expression