MARKERS OF GENES FOR EXTREME RESISTANCE TO POTATOVIRUS Y IN WILD POTATO SPECIES FROM THE SECTION PETOTA OF THE GENUS SOLANUM L
https://doi.org/ 10.18384/2310-7189-2018-4-99-106
Abstract
The methods of marker-assisted selection accelerate breeding potato varieties resistant to potato virus Y (PVY) by introgressing genes for PVY resistance (Ry) from wild potato relatives. The distribution of the Ry genes among the tuber-bearing Solanum species has been scarcely studied. Two markers flanking the genes for extreme resistance to YBK, Rysto and Ryadg, are validated by analyzing potato varieties investigated by the originators of these markers, and then are used to screen nine wild Solanum species. In addition to S. stoloniferum, the Rysto gene marker is found in S. papita, S. polytrichon, S. hjertingii, S. bulbocastanum, S. brachycarpum, and S. cardiophyllum. In addition to S. andigenum, the Ryadg marker is detected in S. demissum and S. stoloniferum. However, only in the case of S. stoloniferum and related species S. papita, the presence of the marker for Rysto gene correlated with extreme YBK resistance.
About the Authors
Mariya P. Beketova
Institute of Agricultural Biotechnology
Russian Federation
Russian Federation
Elena V. Rogozina
N.I. Vavilov Research Institute of Plant Industry
Russian Federation
Russian Federation
Emil E. Chalaya
N.I. Vavilov Research Institute of Plant Industry
Russian Federation
Russian Federation
Nadezhda A. Khavkin
Institute of Agricultural Biotechnology
Russian Federation
Russian Federation
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