期刊
THEORETICAL AND APPLIED GENETICS
卷 123, 期 3, 页码 465-474出版社
SPRINGER
DOI: 10.1007/s00122-011-1599-3
关键词
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资金
- National Science Foundation [IOS 0922661]
- Direct For Biological Sciences
- Division Of Integrative Organismal Systems [0922661] Funding Source: National Science Foundation
Fruit weight is an important character in many crops. In tomato (Solanum lycopersicum), fruit weight is controlled by many loci, some of which have a major effect on the trait. Fruit weight 11.3 (fw11.3) and fasciated (fas) have been mapped to the same region on chromosome 11. We sought to determine whether these loci represent alleles of the same or separate genes. We show that fas and fw11.3 are not allelic and instead represent separate genes. The fw11.3 locus was fine-mapped to a 149-kb region comprised of 22 predicted genes. Unlike most fruit weight loci, gene action at fw11.3 indicates that the mutant allele is partially dominant over the wild allele. We also investigate the nature of the genome rearrangement at the fas locus and demonstrate that the mutation is due to a 294-kb inversion disrupting the YABBY gene known to underlie the fas locus.
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