Expression patterns of flowering genes during flower induction and determination in sweet orange (Citrus sinensis L. Osbeck)

Abstract:

In recent years, several genes putatively involved in the regulation of floral induction have been identified in C. sinensis. However, the expression patterns of these genes in response to different treatments known to alter floral induction have not been investigated. As the first level of regulation for the expression of a given phenotype, characterizing transcript levels of C. sinensis flowering genes will be useful for developing models that could enable discovery of mechanisms regulating floral induction in C. sinensis and other species of subtropical origin. This study investigated patterns of transcript accumulation of putative flowering signal genes CsFT and CsSL1, and the floral identity genes CsAP1 and CsLFY in response to several drought, low temperature and gibberellin treatments known to alter floral induction in C. sinensis. Results supported a role for CsFT as an integrator of flowering signals initiated by low …

Año de publicación:

2011

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