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An evolutionarily conserved DOF-CONSTANS module controls plant photoperiodic signaling

Opened Access An evolutionarily conserved DOF-CONSTANS module controls plant photoperiodic signaling

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Autor: Lucas Reina, Eva
Romero Campero, Francisco José
Romero, José M.
Valverde, Federico
Fecha: 2015
Publicado en: Plant Physiology, 168, 561-574.
Tipo de documento: Artículo
Resumen: The response to daylength is a crucial process that evolved very early in plant evolution, entitling the early green eukaryote to predict seasonal variability and attune its physiological responses to the environment. The photoperiod responses evolved into the complex signaling pathways that govern the angiosperm floral transition today. The Chlamydomonas reinhardtii DNA-Binding with One Finger (CrDOF) gene controls transcription in a photoperiod-dependent manner, and its misexpression influences algal growth and viability. In short days, CrDOF enhances CrCO expression, a homolog of plant CONSTANS (CO), by direct binding to its promoter, while it reduces the expression of cell division genes in long days independently of CrCO. In Arabidopsis (Arabidopsis thaliana), transgenic plants overexpressing CrDOF show floral delay and reduced expression of the photoperiodic genes CO and FLOWERING LOCUS T. The conservation of the DOF-CO module during plant evolution could be an important clue to...
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Cita: Lucas Reina, E., Romero Campero, F.J., Romero, J.M. y Valverde, F. (2015). An evolutionarily conserved DOF-CONSTANS module controls plant photoperiodic signaling. Plant Physiology, 168, 561-574.
Tamaño: 3.021Mb
Formato: PDF

URI: http://hdl.handle.net/11441/64348

DOI: 10.1104/pp.15.00321

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