Evolution and diverse roles of the cup-shaped cotyledon genes in [i]Arabidopsis[/i] leaf development

Autor: Bernard Adroher, Thomas Blein, Patrick Laufs, Anne Plessis, Miltos Tsiantis, Alice Hasson, Stephen P. Grigg, Arezki Boudaoud, Catherine Damerval
Přispěvatelé: Institut Jean-Pierre Bourgin (IJPB), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Department of Plant Sciences, University of Oxford [Oxford], Reproduction et développement des plantes (RDP), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de la Recherche Agronomique (INRA)-École normale supérieure - Lyon (ENS Lyon), Génétique Quantitative et Evolution - Le Moulon (Génétique Végétale) (GQE-Le Moulon), Centre National de la Recherche Scientifique (CNRS)-AgroParisTech-Université Paris-Sud - Paris 11 (UP11)-Institut National de la Recherche Agronomique (INRA), École normale supérieure - Lyon (ENS Lyon)-Institut National de la Recherche Agronomique (INRA)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Institut National de la Recherche Agronomique (INRA)-Université Paris-Sud - Paris 11 (UP11)-AgroParisTech-Centre National de la Recherche Scientifique (CNRS), University of Oxford, École normale supérieure de Lyon (ENS de Lyon)-Institut National de la Recherche Agronomique (INRA)-Université Claude Bernard Lyon 1 (UCBL)
Jazyk: angličtina
Rok vydání: 2011
Předmět:
0106 biological sciences
Arabidopsis
Plant Science
01 natural sciences
Genetic analysis
Gene Expression Regulation
Plant
homeobox gene
Gene duplication
Génétique des plantes
Arabidopsis thaliana
évolution
Research Articles
Phylogeny
Genetics
0303 health sciences
biology
food and beverages
Gene Expression Regulation
Developmental
Plants
Genetically Modified
Phenotype
shoot meristem
floral organs
Regulatory sequence
plant development
microrna regulation
sélection positive
Plants genetics
Evolution
Molecular
[SDV.GEN.GPL]Life Sciences [q-bio]/Genetics/Plants genetics
03 medical and health sciences
Transformation
Genetic
meristem formation
phylogenetic analysis
pattern-formation
small rnas
Phylogenetics
Gene
030304 developmental biology
Arabidopsis Proteins
arabidopsis thaliana
Cell Biology
15. Life on land
biology.organism_classification
Plant Leaves
Mutation
Transcription Factors
010606 plant biology & botany
Zdroj: The Plant cell
The Plant cell, American Society of Plant Biologists (ASPB), 2011, 23 (1), pp.54-68. ⟨10.1105/tpc.110.081448⟩
Plant Cell
Plant Cell, American Society of Plant Biologists, 2011, 23 (1), pp.54-68. ⟨10.1105/tpc.110.081448⟩
Plant Cell 1 (23), 54-68. (2011)
The Plant cell, 2011, 23 (1), pp.54-68. ⟨10.1105/tpc.110.081448⟩
ISSN: 1040-4651
1532-298X
Popis: L'article original est publié par The American Society of Plant Biologists; CUP-SHAPED COTYLEDON2 (CUC2) and the interacting microRNA miR164 regulate leaf margin dissection. Here, we further investigate the evolution and the specific roles of the CUC1 to CUC3 genes during Arabidopsis thaliana leaf serration. We show that CUC2 is essential for dissecting the leaves of a wide range of lobed/serrated Arabidopsis lines. Inactivation of CUC3 leads to a partial suppression of the serrations, indicating a role for this gene in leaf shaping. Morphometric analysis of leaf development and genetic analysis provide evidence for different temporal contributions of CUC2 and CUC3. Chimeric constructs mixing CUC regulatory sequences with different coding sequences reveal both redundant and specific roles for the three CUC genes that could be traced back to changes in their expression pattern or protein activity. In particular, we show that CUC1 triggers the formation of leaflets when ectopically expressed instead of CUC2 in the developing leaves. These divergent fates of the CUC1 and CUC2 genes after their formation by the duplication of a common ancestor is consistent with the signature of positive selection detected on the ancestral branch to CUC1. Combining experimental observations with the retraced origin of the CUC genes in the Brassicales, we propose an evolutionary scenario for the CUC genes.
Databáze: OpenAIRE
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