The system will be going down for regular maintenance. Please save your work and logout.
The tomato genome sequence provides insights into fleshy fruit evolution
LING, Hongqing
Chinese Academy of Agricultural Sciences [CAAS]
Inst Genet & Dev Biol, State Key Lab Plant Cell & Chromosome Engn
< Reduce
Chinese Academy of Agricultural Sciences [CAAS]
Inst Genet & Dev Biol, State Key Lab Plant Cell & Chromosome Engn
Language
en
Article de revue
This item was published in
Nature. 2012, vol. 485, n° 7400, p. 635-641
Nature Publishing Group
English Abstract
Tomato (Solanum lycopersicum) is a major crop plant and a model system for fruit development. Solanum is one of the largest angiosperm genera(1) and includes annual and perennial plants from diverse habitats. Here we present ...Read more >
Tomato (Solanum lycopersicum) is a major crop plant and a model system for fruit development. Solanum is one of the largest angiosperm genera(1) 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(2), 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.Read less <
English Keywords
Lycopersicon-esculentum
gene
diversification : arabidopsis
patterns
ortholog
history
sorghum
potato
Origin
Hal importedCollections