Transcriptional Structure of Petunia Clock in Leaves and Petals
MetadataShow full item record
AuthorTerry López, Marta Isabel; Carrera Alesina, Marta; Weiss, Julia Rosl; Egea Gutiérrez-Cortines, Marcos
Knowledge AreaBotánica; Fisiología Vegetal
SponsorsThis work was developed under projects Fundación Séneca 19398/PI/14, MICINN-FEDER BFU-2013-45148-R and BFU-2017-88300-C2-1-R.
Realizado en/conUniversidad Politécnica de Cartagena
Bibliographic CitationTerry MI, Carrera-Alesina M, Weiss J, Egea-Cortines M. Transcriptional Structure of Petunia Clock in Leaves and Petals. Genes. 2019; 10(11):860. https://doi.org/10.3390/genes10110860
Entrainment of circadian rhythm
The plant circadian clock coordinates environmental signals with internal processes including secondary metabolism, growth, flowering, and volatile emission. Plant tissues are specialized in different functions, and petals conceal the sexual organs while attracting pollinators. Here we analyzed the transcriptional structure of the petunia (Petunia x hybrida) circadian clock in leaves and petals. We recorded the expression of 13 clock genes in petunia under light:dark (LD) and constant darkness (DD). Under light:dark conditions, clock genes reached maximum expression during the light phase in leaves and the dark period in petals. Under free running conditions of constant darkness, maximum expression was delayed, especially in petals. Interestingly, the rhythmic expression pattern of PhLHY persisted in leaves and petals in LD and DD. Gene expression variability differed among leaves and petals, time of day and photoperiod. The transcriptional noise was higher especially in leaves under ...
- Artículos 
The following license files are associated with this item: