Plum (Prunus domestica) trees transformed with poplar FT1 result in altered architecture, dormancy requirement, and continuous flowering
| Autor: | Chris Dardick, Ralph Scorza, Ann M. Callahan, Chinnathambi Srinivasan |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Populus trichocarpa
Photoperiod Agricultural Biotechnology Greenhouse lcsh:Medicine Gene Expression Crops Genetically modified crops Flowers Plant Science Fruits Prunus Agricultural Production Botany Temperate climate lcsh:Science Promoter Regions Genetic Biology Panicle Plant Proteins photoperiodism Plant Growth and Development Multidisciplinary biology lcsh:R fungi food and beverages Genetic Pleiotropy Agriculture Plants biology.organism_classification Plants Genetically Modified Sustainable Agriculture Phenotype Populus Plant Physiology Dormancy lcsh:Q Seasons Genetic Engineering Transcription Factors Research Article Developmental Biology |
| Zdroj: | PLoS ONE PLoS ONE, Vol 7, Iss 7, p e40715 (2012) |
| ISSN: | 1932-6203 |
| Popis: | The Flowering Locus T1 (FT1) gene from Populus trichocarpa under the control of the 35S promoter was transformed into European plum (Prunus domestica L). Transgenic plants expressing higher levels of FT flowered and produced fruits in the greenhouse within 1 to 10 months. FT plums did not enter dormancy after cold or short day treatments yet field planted FT plums remained winter hardy down to at least −10°C. The plants also displayed pleiotropic phenotypes atypical for plum including shrub-type growth habit and panicle flower architecture. The flowering and fruiting phenotype was found to be continuous in the greenhouse but limited to spring and fall in the field. The pattern of flowering in the field correlated with lower daily temperatures. This apparent temperature effect was subsequently confirmed in growth chamber studies. The pleitropic phenotypes associated with FT1 expression in plum suggests a fundamental role of this gene in plant growth and development. This study demonstrates the potential for a single transgene event to markedly affect the vegetative and reproductive growth and development of an economically important temperate woody perennial crop. We suggest that FT1 may be a useful tool to modify temperate plants to changing climates and/or to adapt these crops to new growing areas. |
| Databáze: | OpenAIRE |
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