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Rosaceae is the most important fruit-producing clade, and its key commercially relevant genera (Fragaria, Rosa, Rubus and Prunus) show broadly diverse growth habits, fruit types and compact diploid genomes. Peach, a diploid Prunus species, is one of the best genetically characterized deciduous trees. Here we describe the high-quality genome sequence of(More)
Peach flesh color (white or yellow) is among the most popular commercial criteria for peach classification, and has implications for consumer acceptance and fruit nutritional quality. Despite the increasing interest in improving cultivars of both flesh types, little is known about the genetic basis for the carotenoid content diversity in peach. Here we(More)
The function of monomeric GTPases of the RAS superfamily in fruit development and ripening has been partially characterized. Here the identification of peach (Prunus persica) small GTPases of the RAS superfamily expressed in fruit and the characterization of their expression profiles during fruit development are described. Extensive searches on expressed(More)
Biotechnological innovations that allow one to sample gene expression (e.g. gene-expression arrays or real-time Polymerase Chain Reaction (PCR)), have made it possible to measure the gene expression levels of a biological system with varying degree of accuracy, cost and speed. By repeating the measurement steps at different sampling rates during the system(More)
Several complex physiological processes, which include long-distance translocation in the phloem and unloading in sink tissues, govern the partitioning of sugars in economically important organs, such as peach fruit. In this study, we took advantage of a symplastic tracer, carboxyfluorescein (CF), providing evidence for an apoplastic sucrose transfer in the(More)
Sucrose is the major phloem-translocated component in a number of economically important plant species. The comprehension of the mechanisms involved in sucrose transport in peach fruit appears particularly relevant, since the accumulation of this sugar, during ripening, is crucial for the growth and quality of the fruit. Here, we report the functional(More)
Peach fruit tissues start differentiating into mesocarp, endocarp, and seed from the first phases of development. A seed is necessary for fruit set, and it may strongly regulate the growth of the whole fruit through metabolic or hormonal signals. Although the importance of sugar and hormone signaling in growing fruit, such as peach, has been analyzed(More)
Contents: Bud Mishra, Algebraic systems biology: theses and hypotheses (1–14); Abdul S. Jar-rah and Reinhard Laubenbacher, Discrete models of biochemical networks: the toric variety of nested canalyzing functions (15–22); Gheorghe P˘ aun, Membrane computing as a framework for bio-modeling (an informal glimpse) (23–35); Heike Siebert and Alexander Bockmayr,(More)
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