Changing the spatial pattern of TFL1 expression reveals its key role in the shoot meristem in controlling Arabidopsis flowering architecture
| العنوان: | Changing the spatial pattern of TFL1 expression reveals its key role in the shoot meristem in controlling Arabidopsis flowering architecture |
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| المؤلفون: | Yoshie Hanzawa, Kim Baumann, Desmond Bradley, M. J. Domenech, Ana Berbel, Tracy Money, Francisco Madueño, Julien Venail, Lucio Conti |
| المصدر: | Journal of Experimental Botany RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia instname |
| بيانات النشر: | Oxford University Press (OUP), 2015. |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | Physiology, Meristem, Arabidopsis, Repressor, Expression, Flowers, Plant Science, Flowering, Gene Expression Regulation, Plant, Identity, Botany, Architecture, Primordium, TFL1, Gene, biology, Arabidopsis Proteins, fungi, Gene Expression Regulation, Developmental, food and beverages, Spatiotemporal pattern, biology.organism_classification, ABC model of flower development, Shoot, Plant Shoots, Research Paper |
| الوصف: | Highlight Plants carefully control where and when flowers are made through activators and repressors. We show that spatially the shoot meristem is key in responding to the repressors of flowering TFL1. Models for the control of above-ground plant architectures show how meristems can be programmed to be either shoots or flowers. Molecular, genetic, transgenic, and mathematical studies have greatly refined these models, suggesting that the phase of the shoot reflects different genes contributing to its repression of flowering, its vegetativeness (‘veg’), before activators promote flower development. Key elements of how the repressor of flowering and shoot meristem gene TFL1 acts have now been tested, by changing its spatiotemporal pattern. It is shown that TFL1 can act outside of its normal expression domain in leaf primordia or floral meristems to repress flower identity. These data show how the timing and spatial pattern of TFL1 expression affect overall plant architecture. This reveals that the underlying pattern of TFL1 interactors is complex and that they may be spatially more widespread than TFL1 itself, which is confined to shoots. However, the data show that while TFL1 and floral genes can both act and compete in the same meristem, it appears that the main shoot meristem is more sensitive to TFL1 rather than floral genes. This spatial analysis therefore reveals how a difference in response helps maintain the ‘veg’ state of the shoot meristem. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ee671810b6dbc97b54e800b7a3ae274 https://hdl.handle.net/10251/79423 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....5ee671810b6dbc97b54e800b7a3ae274 |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |