Comparative profiling of tomato fruits and leaves evidences a complex modulation of global transcript profiles

Furthermore, real-time RT-PCR was used to study the regulation of transcripts encoding photosensory receptors, light signalling proteins, and carotenoid biosynthesis genes. Some of these transcripts are highly regulated during tomato fruit development, suggesting that light responsiveness of carotenoid biosynthesis tomato fruits could be at least partially regulated at the transcriptional level.