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conference schedule and program with abstracts - Horticulture ...

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grapevine. Several thous<strong>and</strong>s of SNPs (Single Nucleotide Polymorphims) have been identified.<br />

A subset of these SNPs will be used for genotyping the 3 sub-populations using the SNPlex<br />

technology, in order to detect a possible correlation between genotypic <strong>and</strong> phenotypic variation.<br />

Finally, in order to test the hypothesis that flb is one of the genes selected during grapevine<br />

domestication, 69 gene fragments along flb locus (1Mbp) were sequenced in a sample of wild<br />

<strong>and</strong> cultivated Vitis vinifera. Our results revealed a small zone showing more polymorphism in<br />

wild genotypes than in cultivated genotypes <strong>and</strong> a large zone of 171Kb showing either more<br />

polymorphism in cultivated genotypes than in wild genotypes. These intervals will be studied<br />

more in details using two approaches: gene expression studies <strong>and</strong> an improvement of the<br />

genotype sampling for the DNA polymorphism studies.<br />

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