Dataset Information


Transcription profiling of diurnal responses in CRY2-OX and wild type tomato plants

ABSTRACT: In order to study possible effects of cryptochrome 2-mediated light signals on the global expression profiles of tomato genes, we performed large scale transcription comparisons in wt and CRY2-OX by using a DNA microarray of more than 90,000 tomato oligo-probes.
Tomato plants were grown under a daily light cycle of 16h light/8h darkness (LD) and leaves from both genotypes were sampled at presumptive dawn (Zeitgeber time (ZT) 0), eight hours after dawn (ZT8), at presumptive dusk (ZT16) and four hours after dusk (ZT20).

ORGANISM(S): Solanum lycopersicum  

SUBMITTER: Fabrizio Carbone  

PROVIDER: E-MEXP-2278 | ArrayExpress | 2011-12-12


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Tomato plants overexpressing cryptochrome 2 reveal altered expression of energy and stress-related gene products in response to diurnal cues.

Lopez Loredana L   Carbone Fabrizio F   Bianco Linda L   Giuliano Giovanni G   Facella Paolo P   Perrotta Gaetano G  

Plant, cell & environment 20111214 5

In order to sense and respond to the fluctuating light conditions, higher plants possess several families of photoreceptors, such as phytochromes (PHYs), cryptochromes (CRYs) and phototropins. CRYs are responsible for photomorphogenesis and play a role in circadian, developmental and adaptive growth regulation of plants. In tomato (Solanum lycopersicum), CRY2 controls vegetative development, flowering time, fruit antioxidant content as well as the diurnal transcription of several other photorece  ...[more]

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