Media type: E-Article Title: Relationship Between Virulence Variation and DNA Polymorphism inPuccinia striiformis Contributor: Chen, Xianming imprint: Scientific Societies, 1993 Published in: Phytopathology Language: Not determined DOI: 10.1094/phyto-83-1489 ISSN: 0031-949X Origination: Footnote: Access State: Open Access