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Tomato locus Locule number
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LA1388 LA0172
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JF284938 Solanum lycopersicum var. cerasiforme cultivar Cervil locule number quantitative trait locus genomic sequence.
JF284939 Solanum lycopersicum cultivar Levovil locule number quantitative trait locus genomic sequence.
JF285114 Solanum lycopersicum cultivar Arava locule number quantitative trait locus genomic sequence.
JF284939 Solanum lycopersicum cultivar Levovil locule number quantitative trait locus genomic sequence.
JF285114 Solanum lycopersicum cultivar Arava locule number quantitative trait locus genomic sequence.
Other genome matches | None |
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Distribution of SUN, OVATE, LC, and FAS in the Tomato Germplasm and the Relationship to Fruit Shape Diversity.
Plant physiology (2011)
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Phenotypic diversity within cultivated tomato (Solanum lycopersicum) is particularly evident for fruit shape and size. Four genes that control tomato fruit shape have been cloned. SUN and OVATE control elongated shape whereas FASCIATED (FAS) and LOCULE NUMBER (LC) control fruit locule number and flat shape. We investigated the distribution of the fruit shape alleles in the tomato germplasm and evaluated their contribution to morphology in a diverse collection of 368 predominantly tomato and tomato var. cerasiforme accessions. Fruits were visually classified into eight shape categories that were supported by objective measurements obtained from image analysis using the Tomato Analyzer software. The allele distribution of SUN, OVATE, LC, and FAS in all accessions was strongly associated with fruit shape classification. We also genotyped 116 representative accessions with additional 25 markers distributed evenly across the genome. Through a model-based clustering we demonstrated that shape categories, germplasm classes, and the shape genes were nonrandomly distributed among five genetic clusters (P < 0.001), implying that selection for fruit shape genes was critical to subpopulation differentiation within cultivated tomato. Our data suggested that the LC, FAS, and SUN mutations arose in the same ancestral population while the OVATE mutation arose in a separate lineage. Furthermore, LC, OVATE, and FAS mutations may have arisen prior to domestication or early during the selection of cultivated tomato whereas the SUN mutation appeared to be a postdomestication event arising in Europe.
Rodríguez, GR. Muños, S. Anderson, C. Sim, SC. Michel, A. Causse, M. Gardener, BB. Francis, D. van der Knaap, E.
Plant physiology.
2011.
156(1).
275-85.
Increase in tomato locule number is controlled by two single-nucleotide polymorphisms located near WUSCHEL.
Plant physiology (2011)
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In tomato (Solanum lycopersicum) fruit, the number of locules (cavities containing seeds that are derived from carpels) varies from two to up to 10 or more. Locule number affects fruit shape and size and is controlled by several quantitative trait loci (QTLs). The large majority of the phenotypic variation is explained by two of these QTLs, fasciated (fas) and locule number (lc), that interact epistatically with one another. FAS has been cloned, and mutations in the gene are described as key factors leading to the increase in fruit size in modern varieties. Here, we report the map-based cloning of lc. The lc QTL includes a 1,600-bp region that is located 1,080 bp from the 3' end of WUSCHEL, which encodes a homeodomain protein that regulates stem cell fate in plants. The molecular evolution of lc showed a reduction of diversity in cultivated accessions with the exception of two single-nucleotide polymorphisms. These two single-nucleotide polymorphisms were shown to be responsible for the increase in locule number. An evolutionary model of locule number is proposed herein, suggesting that the fas mutation appeared after the mutation in the lc locus to confer the extreme high-locule-number phenotype.
Muños, S. Ranc, N. Botton, E. Bérard, A. Rolland, S. Duffé, P. Carretero, Y. Le Paslier, MC. Delalande, C. Bouzayen, M. Brunel, D. Causse, M.
Plant physiology.
2011.
156(4).
2244-54.
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