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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/28463
The tomato genome sequence providies insights into fleshy fruit evolution
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Tomato (Solanum lycopersicum) is a major crop plant and a model system for fruit development. Solanum is one of the largest angiosperm genera1 and includes annual and perennial plants from diverse habitats. Here we present a high-quality genome sequence of domesticated tomato, a draft sequence of its closest wild relative, Solanum pimpinellifolium2, and compare them to each other and to the potato genome (Solanum tuberosum). The two tomato genomes show only 0.6% nucleotide divergence and signs of recent admixture, but show more than 8% divergence from potato, with nine large and several smaller inversions. In contrast to Arabidopsis, but similar to soybean, tomato and potato small RNAs map predominantly to gene-rich chromosomal regions, including gene promoters. The Solanum lineage has experienced two consecutive genome triplications: one that is ancient and shared with rosids, and a more recent one. These triplications set the stage for the neofunctionalization of genes controlling fruit characteristics, such as colour and fleshiness.
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Tomato Genome Consortium and OROZCO LÓPEZ, Modesto. The tomato genome sequence providies insights into fleshy fruit evolution. Nature. 2012. Vol. 485, num. 635-641. ISSN 0028-0836. [consulted: 17 of June of 2026]. Available at: https://hdl.handle.net/2445/28463