【摘 要】
：
The genetic stability of Potato spindle tuber viroid (PSTVd) from three potato areas of Heilongjiang in China was analyzed.PSTVd samples of PKS 1-6 from Keshan
【机 构】
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HeilongjiangPotatoEngineerTechnologyResearchCenter,HeilongjiangAcademyofAgriculturalSciences,Harbin,
【出 处】
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International Workshop on Viroids and Satellite RNAs(IWVdS)国
论文部分内容阅读
The genetic stability of Potato spindle tuber viroid (PSTVd) from three potato areas of Heilongjiang in China was analyzed.PSTVd samples of PKS 1-6 from Keshan was cloned and sequenced.Compared with severe strains(KF 440-2 and RG1) and intermediate strain (PSTVd int) reported in Genebank, PKS 1-6 had more differences in sequence(identity were only 97.21％, 97.77％ and 98.61％,respectively), whereas PKS 1-6 was more constant in sequence with mild strains(KF-5, GI 333357 and GB X76844) (identity were 99.16％, 97.72％ and 99.44％, respectively).
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