文献类型: 外文期刊
第一作者: Liu, F
作者: Liu, F;Kang, ZS;Chen, SY;Li, ZQ;Wu, LR
作者机构:
关键词: Puccinia striiformis;AFLP;DNA fingerprinting;cluster analysis;evolution relationship
期刊名称:PROGRESS IN NATURAL SCIENCE ( 影响因子:3.607; 五年影响因子:4.795 )
ISSN: 1002-0071
年卷期: 2001 年 11 卷 8 期
页码:
收录情况: SCI
摘要: Amplified fragment length polymorphism (AFLP) was used to fingerprint the epidemic strains CY25, CY27, CY28, CY29, CY30, CY31, Hy3, Hy7, Sy13 and a mutant strain WV-4 of P. striiformis f. sp. tritici, the pathogen of wheat stripe rust. The results showed that (i) genetic diversity existed in the pathogen populations, and based on it a dendrogram of these strains was constructed by unweighted pair-group mean average to demonstrate the relationships of the tested strains; (ii) no significant correlation between virulence of the pathogens and the polymorphism of DNA fingerprints was found; (iii) AFLP fingerprints showed higher polymorphism than that of the virulence variation; (iv) several new pathotypes identified might evolve independently of the reference strains identified before.
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