BIO Web Conf.
Volume 39, 2021International Scientific and Practical Conference “Modern Trends in Science, Innovative Technologies in Vineyards and Wine Making” (MTSITVW2021)
|Number of page(s)||5|
|Section||Genetic Resources, Genetics, Genomics, Bioengineering|
|Published online||26 November 2021|
Search for donors of powdery mildew resistance genes among seedless and table grape varieties
Federal State Budget Scientific Institution «North Caucasian Federal Scientific Center of Horticulture, Viticulture, Wine-making», 350901 Krasnodar, Russia
* Corresponding author: firstname.lastname@example.org
Powdery mildew (Erysiphe necator) is one of the most common and economically significant diseases of grapes. Currently, the main method of controlling the disease is pesticide treatment. Breeding of resistant varieties is necessary to reduce chemical treatments. Currently, a number of grape resistance genes to powdery mildew and DNA markers for identification the allelic status of these genes are known. In a study to determine the presence of resistance loci Ren3 and Ren9, 25 genotypes of table grape varieties were analyzed, including 18 seedless varieties. DNA markers GF15-42, ScORGF15-02 were used to identify Ren3 gene, and CenGen6 – to identify Ren9 gene. DNA of cultivars Regent and Seyve Villard 12-375, which have resistance alleles, were used as positive controls. As a result of DNA marker analysis, it was determined that genotypes of table varieties Viking, Kodryanka, Moldova, Nadezhda AZOS, Original and seedless varieties Pamyati Smirnova, Kishmish Zaporozhskiy and Kishmish 342 carry loci of resistance to powdery mildew Ren3 and Ren9.
© The Authors, published by EDP Sciences, 2021
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