![]() ![]() Tomato genes identified by map-based cloning ( Supplementary Table 14) are indicated on the right. Unsequenced gaps (approximately 9.8 Mb, Supplementary Table 13) are indicated by white horizontal lines. f, DNA pseudomolecule consisting of nine scaffolds. Horizontal grey lines represent gaps in the pseudomolecule ( f). pimpinellifolium (number of reads per 500 kb, green and red, respectively), microRNA genes (transcripts per million per 500 kb, black), small RNAs (thin horizontal black and red lines, sum of hits-normalized abundances). ![]() e, From left to right: linkage map distance (cM/Mb, turquoise), repeated sequences (% nucleotides per 500 kb, purple), genes (% nucleotides per 500 kb, blue), chloroplast insertions RNA-Seq reads from leaves and breaker fruits of S. Blue lines to the left connect linkage map markers on the BAC-FISH map ( c), and to the right to heat maps ( e) and the DNA pseudomolecule ( f). c, FISH-based locations of selected BACs (horizontal blue lines on left). Red stars mark 5 cM intervals starting from the end of the short arm (top). b, Frequency distribution of recombination nodules (RNs) representing crossovers on 249 chromosomes. a, Left: contrast-reversed, 4′,6-diamidino-2-phenylindole (DAPI)-stained pachytene chromosome centre and right: FISH signals for repeat sequences on diagrammatic pachytene chromosomes (purple, TGR1 blue, TGR4 red, telomere repeat green, Cot 100 DNA (including most repeats)). These triplications set the stage for the neofunctionalization of genes controlling fruit characteristics, such as colour and fleshiness.Ī, Multi-dimensional topography of tomato chromosome 1 (chromosomes 2–12 are shown in Supplementary Fig. The Solanum lineage has experienced two consecutive genome triplications: one that is ancient and shared with rosids, and a more recent one. ![]() In contrast to Arabidopsis, but similar to soybean, tomato and potato small RNAs map predominantly to gene-rich chromosomal regions, including gene promoters. 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. 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). Solanum is one of the largest angiosperm genera 1 and includes annual and perennial plants from diverse habitats. Tomato ( Solanum lycopersicum) is a major crop plant and a model system for fruit development. ![]()
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