The tomato genome sequence provides insights into fleshy fruit evolution
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Issue date
2012-05-30Submitted date
2020-01-12Subject Terms
Developmental biologyFruiting
Genome evolution
Plant genetics
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Show full item recordAbstract
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.Citation
Sato, S., Tabata, S., Hirakawa, H. et al. The tomato genome sequence provides insights into fleshy fruit evolution. Nature 485, 635–641 (2012). https://doi.org/10.1038/nature11119Publisher
Springer Science and Business Media LLCJournal
NatureType
Journal ArticleItem Description
This is an open access article, available to all readers online, published under the terms of the Creative Commons Attribution-Non-Commercial-Share Alike licence (http://creativecommons.org/licenses/by-nc-sa/3.0/). The attached file is the published version of the article.NHM Repository
ISSN
0028-0836EISSN
1476-4687ae974a485f413a2113503eed53cd6c53
10.1038/nature11119
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