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Chapitre D'ouvrage Année : 2016

Gene mapping in tomato

Résumé

Tomato is a model species for genetic analyses since a long time. Many mutations controlled by a single gene were discovered and the underlying genes were mapped first on the tomato genetic map. Most of these genes are involved in fruit colour and shape, in plant growth and architecture and in disease resistances. With the construction of high-density molecular genetic maps, many genes were located on the genome and subsequently several of them were fine-mapped and further identified by positional cloning. Today with the availability of the tomato genome sequence these genes are physically located on the genome and the identification of new ones is being considerably accelerated. The alignment of the physical and genetic maps allowed the identification of hot spots of recombination and of large regions where recombination is almost suppressed, whatever the progeny studied. The impact of this heterogeneity in recombination is discussed.
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Dates et versions

hal-01606947 , version 1 (02-10-2017)

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Citer

Mathilde Causse, Silvana Grandillo. Gene mapping in tomato. The Tomato Genome, Springer, 259 p., 2016, Compendium of Plant Genomes, 978-3-662-53387-1. ⟨10.1007/978-3-662-53389-5_3⟩. ⟨hal-01606947⟩
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