Control of final seed and organ size by the DA1 gene family in Arabidopsis thaliana
Copyright policy )Control of final seed and organ size by the DA1 gene family in Arabidopsis thaliana
Although the size of an organism is a defining feature, little is known about the mechanisms that set the final size of organs and whole organisms. Here we describe Arabidopsis DA1, encoding a predicted ubiquitin receptor, which sets final seed and organ size by restricting the period of cell proliferation. The mutant protein encoded by the da1-1 allele has a negative activity toward DA1 and a DA1-related (DAR) protein, and overexpression of a da1-1 cDNA dramatically increases seed and organ size of wild-type plants, identifying this small gene family as important regulators of seed and organ size in plants.
- Biotechnology and Biological Sciences Research Council United Kingdom
- State Key Laboratory of Plant Cell and Chromosome Engineering China (People's Republic of)
- Chinese Academy of Sciences China (People's Republic of)
- John Innes Centre United Kingdom
- Institute of Genetics and Developmental Biology China (People's Republic of)
DNA, Complementary, Arabidopsis Proteins, Arabidopsis, Germination, Receptors, Cell Surface, Flowers, Organ Size, LIM Domain Proteins, Genes, Plant, Plants, Genetically Modified, Enhancer Elements, Genetic, Gene Expression Regulation, Plant, Multigene Family, Seeds, Cloning, Molecular, Promoter Regions, Genetic
DNA, Complementary, Arabidopsis Proteins, Arabidopsis, Germination, Receptors, Cell Surface, Flowers, Organ Size, LIM Domain Proteins, Genes, Plant, Plants, Genetically Modified, Enhancer Elements, Genetic, Gene Expression Regulation, Plant, Multigene Family, Seeds, Cloning, Molecular, Promoter Regions, Genetic
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