Published date: Apr 05 2021

Journal Title: KnE Life Sciences

Issue title: DonAgro: International Research Conference on Challenges and Advances in Farming, Food Manufacturing, Agricultural Research and Education

Pages: 826–836

DOI: 10.18502/kls.v0i0.9020

Fatima Gerieva Vladikavkaz Scientific Center of the Russian Academy of Sciences RAS-Alania, Vladikavkaz, Russia; North Caucasian Research Institute of Mining and Piedmont Agriculture - a branch of Vladikavkaz Scientific Center of the Russian Academy of Sciences, RSA-Alania, Mikhailovskoe, Russia

Viktoria BiryukovaA.G. Lorkh All-Russian Scientific Research Institute of Potato Farming, Moscow region 140051, p. Kraskovo, Russia

Irina Gazdanova Gazdanovaira2020@gmail.comVladikavkaz Scientific Center of the Russian Academy of Sciences RAS-Alania, Vladikavkaz, Russia

Using the traditional and marker-assisted selection methods, a comprehensive assessment of promising hybrids from the collection of the All-Russian Scientific Center was carried out. The assessment was conducted in 2018–2019 in the Republic of North Ossetia-Alania. As a result of molecular genetic analysis, hybrids were found with complex resistance to potato nematode, virus Y and X viruses - 2 / V, 5 / V, 6 / V, 17 / V, 40 / V, 43 / V, 46 / V, 54 / V, 124 / V, 9 / VI, 22a / VI, 35 / VI, 130 / VI, 71 / VII and 118 / VIII. Use of these selected forms allows optimal protection of potatoes, limitation of the spread of pathogens and prevention of the emergence of more aggressive pathotypes (races and strains). The hybrids with resistance to potato virus Y (with the presence of R-gene markers - 1/I, 3/I, 10/I, 13/I, 11/II, 15/III, 2/V, 5/V, 6/V, 7/V, 10/V/1140, 17/V, 40/V, 43/V, 46/V, 54/V, 124/V, 9/VI, 22a/VI, 35/VI, 100/VI, 130/VI, 71/VII) are of interest for practical breeding, as well as the hybrids with resistance to Phytophthora infestans such as 15/III, 119/IX and the hybrids 15 / III, 35 / VI, 130 / VI and 71 / VII, which have high marketable yield and weight of tuber.

Keywords: potato, interspecific hybrids, marker-assisted breeding, resistance genes

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