The tomato genome sequence provides insights into fleshy fruit evolution

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Title
The tomato genome sequence provides insights into fleshy fruit evolution
Author(s)
S Sato; S Tabata; L A Mueller; S Huang; Y Du; C Li; Z Cheng; J Zuo; B Han; Y Wang; H Ling; Y Xue; D Ware; W R McCombie; Z B Lippman; S M Stack; S D Tanksley; Y V Peer; K Mayer; G J Bishop; S Butcher; N K Singh; T Schiex; M Bouzayen; A Granell; F Carrari; G D Bellis; G Giuliano; G Bryan; M J T Eijk; H Fukuoka; D Chattopadhyay; R C H J Ham; D Choi; J Rogers; Z Fei; J J Giovannoni; R Wing; H Schoof; B C Meyers; J P Khurana; A K Tyagi; T Dalmay; A H Paterson; X Wang; L Frusciante; G B Seymour; B A Roe; G Valle; H H Jong; R M K Lankhorst; Sung Hwan Jo; Jungeun Kim; Suk Yoon Kwon; Cheol-Goo Hur; Y D Choi; D Zamir
Bibliographic Citation
Nature, vol. 485, no. 7400, pp. 635-641
Publication Year
2012
Abstract
Tomato (Solanum lycopersicum) is a major crop plant and a model system for fruit development. Solanum is one of the largest angiosperm genera 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 pimpinellifolium, 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.
ISSN
0028-0836
Publisher
Springer-Nature Pub Group
DOI
http://dx.doi.org/10.1038/nature11119
Type
Article
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1. Journal Articles > Journal Articles
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