Detection of potato spindle tuber viroid in true potato seed from China
At the Keshan Potato Research Institute, China, potato breeding material was investigated by return-polyacrylamide gel electrophoresis (R-PAGE) for the presence of potato spindle tuber viroid (EPPO A2 pest). ;Over 1700 true potato seeds were tested. Of the 46 seedlots, 24 contained PSTVd. The viroid was detected in 70% of the lots from inbred lines and in 38% of the lots from outcrosses. PSTVd was also detected in true potato seeds which were stored in paper bags at room temperature since for 21 years.
Singh, R.P.; Boucher, A.; Wang, R.G. (1991) Detection, distribution and long-term persistence of potato spindle tuber viroid in true potato seed from Heilongjiang, China.
American Potato Journal 68, 65-74.