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REVISITING LATE BLIGHT RESISTANCE GENES IN COMPLEX INTERSPECIFIC POTATO HYBRIDSстатья
- Авторы: FADINA O.A., BEKETOVA M.P., KUZNETSOVA M.A., ROGOZINA E.V., KHAVKIN E.E.
- Журнал: PPO-SPECIAL REPORT
- Номер: 18
- Год издания: 2017
- Издательство: Applied Plant Research
- Местоположение издательства: Wageningen, The Netherlands
- Первая страница: 245
- Последняя страница: 256
- Аннотация: Stacking (pyramiding) several late blight (LB) resistance genes (R genes) of diverse race specificity in one and the same potato plant provides for high, broad spectrum and durable resistance. Sixty six potato clones under study included the standard potato varieties and interspecific hybrids obtained by introgression breeding and comprising genetic material from up to eight wild Solanum species. These genotypes were evaluated for LB resistance in field trials under natural infestation and laboratory tests with detached leaves and screened with sequence characterized amplification region (SCAR) markers for seven genes: R1, R2/Rpi-blb3, R3a, R3b, RB/Rpi-blb1=Rpi-sto1, Rpi-blb2 and Rpi-vnt1.3. LB resistance of most hybrids was significantly related to the presence of the markers for R genes and the number of markers per plant; nevertheless, a considerable portion of resistance apparently depended on unknown or insufficiently researched genes, especially from the species practically new to breeding for LB resistance, such as S. alandiae.
- Добавил в систему: Кузнецова Мария Алексеевна