In silico analysis of 3 expansin gene promoters reveals 2 hubs controlling light and cytokinins response during bud outgrowth
| Autor: | Nathalie Leduc, José Le Gourrierec, Hanaé Roman, Tiffanie Girault |
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| Přispěvatelé: | Institut de Recherche en Horticulture et Semences (IRHS), Université d'Angers (UA)-Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST, Angers Loire Metropole, Ministere de l'Enseignement superieur, AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de la Recherche Agronomique (INRA)-Université d'Angers (UA), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), AGROCAMPUS OUEST-Institut National de la Recherche Agronomique (INRA)-Université d'Angers (UA) |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
0301 basic medicine Cytokinins Light Endogenous Factors In silico [SDV]Life Sciences [q-bio] Abiotic factor Plant Science Biology Rosa 01 natural sciences 03 medical and health sciences Expansin Gene Expression Regulation Plant Cell elongation Gene expression Botany branching cell elongation Promoter Regions Genetic Gene EXPA hormones Cell growth Promoter Article Addendum Cell biology 030104 developmental biology signaling 010606 plant biology & botany |
| Zdroj: | Plant Signaling and Behavior Plant Signaling and Behavior, Taylor & Francis, 2017, 12 (2), ⟨10.1080/15592324.2017.1284725⟩ |
| ISSN: | 1559-2316 1559-2324 |
| Popis: | Bud outgrowth is under the intricate control of environmental and endogenous factors. In a recent paper, 1 we demonstrated that light perceived by Rosa buds triggers cytokinins (CK) synthesis within 3 hours in the adjacent node followed by their transport to the bud. There, CK control expression of a set of major genes (strigolactones-, auxin-, sugar sink strength-, cells division and elongation-related genes) leading to bud outgrowth in light. Conversely, under dark condition, CK accumulation and transport to the bud are repressed and no bud outgrowth occurs. In this paper, we show that the 3 expansin genes RhEXPA1,2,3 are under the control of both light and CK during bud outgrowth. In silico analysis of promoter sequences highlights 2 regions enriched in light and CK cis-regulatory elements as well as a specific cis-element in pRhEXPA3, potentially responsible for the expression patterns observed in response to CK and light. |
| Databáze: | OpenAIRE |
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