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Title: | The tomato genome sequence providies insights into fleshy fruit evolution |
Author: | Tomato Genome Consortium Orozco López, Modesto |
Keywords: | Genomes Tomàquets Genomes Tomatoes |
Issue Date: | 30-May-2012 |
Publisher: | Nature Publishing Group |
Abstract: | 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. |
Note: | Versió postprint del document publicat a: http://dx.doi.org/10.1038/nature11119 |
It is part of: | Nature, 2012, vol. 485, p. 635-641 |
URI: | http://hdl.handle.net/2445/28463 |
Related resource: | http://dx.doi.org/10.1038/nature11119 |
ISSN: | 0028-0836 |
Appears in Collections: | Articles publicats en revistes (Bioquímica i Biomedicina Molecular) Articles publicats en revistes (Institut de Recerca Biomèdica (IRB Barcelona)) |
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