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The tomato genome sequence provides insights into fleshy fruit evolution
A high-quality genome sequence of domesticated tomato is presented, a draft sequence of its closest wild relative, Solanum pimpinellifolium, is compared, and the two tomato genomes are compared to each other and to the potato genome.
Genome sequence and analysis of the tuber crop potato
The potato genome sequence provides a platform for genetic improvement of this vital crop and predicts 39,031 protein-coding genes and presents evidence for at least two genome duplication events indicative of a palaeopolyploid origin.
An evolutionarily conserved protein binding sequence upstream of a plant light-regulated gene.
- G. Giuliano, E. Pichersky, V. Malik, M. Timko, P. Scolnik, A. Cashmore
- Biology, MedicineProceedings of the National Academy of Sciences…
- 1 October 1988
A protein factor, identified in nuclear extracts obtained from tomato and Arabidopsis seedlings, specifically binds upstream sequences from the plant light-regulated gene family encoding the small subunit of ribulose 1,5-bisphosphate carboxylase/oxygenase (RBCS).
Regulation of carotenoid biosynthesis during tomato development.
It is concluded that PSY and PDS are differentially regulated by stress and developmental mechanisms that control carotenoid biosynthesis in leaves, flowers, and fruits.
Metabolic Engineering of Potato Carotenoid Content through Tuber-Specific Overexpression of a Bacterial Mini-Pathway
- G. Diretto, S. Al‐Babili, R. Tavazza, V. Papacchioli, P. Beyer, G. Giuliano
- Medicine, BiologyPloS one
- 4 April 2007
This is the highest carotenoid and beta-carotene content reported for biofortified potato as well as for any of the four major staple foods (the next best event being “Golden Rice 2”, with 31 mcg/g dry weight beta- carotene).
Metabolic engineering of potato tuber carotenoids through tuber-specific silencing of lycopene epsilon cyclase
The data suggest that epsilon-cyclization of lycopene is a key regulatory step in potato tuber carotenogenesis, and upon tuber-specific silencing of the corresponding gene, beta-beta-carotenoid levels are increased, and expression of several other genes in the pathway is modified.
Comparative 454 pyrosequencing of transcripts from two olive genotypes during fruit development
Comparative transcript profiling allowed the identification of differentially expressed genes with potential relevance in regulating the fruit metabolism and phenolic content during ripening and provided large scale information about the structure and putative function of gene transcripts accumulated during fruit development.
The coffee genome provides insight into the convergent evolution of caffeine biosynthesis
The Coffea canephora (coffee) genome was sequenced and identified a conserved gene order, and comparative analyses of caffeine NMTs demonstrate that these genes expanded through sequential tandem duplications independently of genes from cacao and tea, suggesting that caffeine in eudicots is of polyphyletic origin.
DNA methylation of embryogenic carrot cell cultures and its variations as caused by mutation, differentiation, hormones and hypomethylating drugs
- F. Loschiavo, L. Pitto, +6 authors M. Terzi
- Biology, MedicineTheoretical and Applied Genetics
- 1 March 1989
The level of auxin in the medium has a strong effect on the level of 5-methyl-cytosine in the DNA of carrot cells in culture, and a mutant was isolated which is resistant to the action of hypomethylating drugs.
Silencing of beta-carotene hydroxylase increases total carotenoid and beta-carotene levels in potato tubers
Together with epsilon-cyclization of lycopene, beta-carotene hydroxylation is another regulatory step in potato tuber carotenogenesis and is consistent with a prevalent role of CHY2, which is highly expressed in tubers, in the control of this step.