ArticlePlant cell reports2012
Overexpression of RoDELLA impacts the height, branching, and flowering behaviour of Pelargonium × domesticum transgenic plants.
Article in Plant cell reports, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Elucidating the design principles for engineering plant organ size.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- RcSPL1-RcTAF15b regulates the flowering time of rose (Horticulture research · 2023Article
- In the name of the rose: a roadmap for rose research in the genome era.Horticulture research · 2019Article
- Repression of Lateral Organ Boundary Genes by PENNYWISE and POUND-FOOLISH Is Essential for Meristem Maintenance and Flowering in Arabidopsis.Plant physiology · 2015Article
- Silencing C19-GA 2-oxidases induces parthenocarpic development and inhibits lateral branching in tomato plants.Journal of experimental botany · 2015Article
- Genetics and genomics of flower initiation and development in roses.Journal of experimental botany · 2013Review
- Sugars, the clock and transition to flowering.Frontiers in plant science · 2013Article
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Authors and funding
11 authors.
Funding
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Abstract
key messageWe reported the cloning of a rose DELLA gene. We obtained transgenic Pelargonium lines overexpressing this gene which presented several phenotypes in plant growth, root growth, flowering time and number of inflorescences. Control of development is an important issue for production of ornamental plant. The plant growth regulator, gibberellins (GAs), plays a pivotal role in regulating plant growth and development. DELLA proteins are nuclear negative regulator of GA signalling. Our objective was to study the role of GA in the plant architecture and in the blooming of ornamentals. We cloned a rose DELLA homologous gene, RoDELLA, and studied its function by genetic transformation of pelargonium. Several transgenic pelargonium (Pelargonium × domesticum 'Autum Haze') lines were produced that ectopically expressed RoDELLA under the control of the 35S promoter. These transgenic plants exhibited a range of phenotypes which could be related to the reduction in GA response. Most of transgenic plants showed reduced growth associated to an increase of the node and branch number. Moreover, overexpression of RoDELLA blocked or delayed flowering in transgenic pelargonium and exhibited defects in the root formation. We demonstrated that pelargonium could be used to validate ornamental gene as the rose DELLA gene. RoDELLA overexpression modified many aspects of plant developmental pathways, as the plant growth, the transition of vegetative to floral stage and the ability of rooting.
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