Randomly amplified polymorphic DNA analysis of Xylella fastidiosa Pierce's disease and oak leaf scorch pathotypes

作者：Jing Chen, Olusola Lamikanra, Chung‐Jan Chang, D. L. Hopkins · 发表于：Applied and Environmental Microbiology · 年份：1995 · DOI：10.1128/aem.61.5.1688-1690.1995 · 被引用次数：47 · 研究领域：Phytoplasmas and Hemiptera pathogens、Cocoa and Sweet Potato Agronomy、Viral-associated cancers and disorders

Randomly amplified polymorphic DNA analysis was conducted with 14 primers to 17 strains of Xylella fastidiosa. There was a high degree of similarity among the seven Pierce's disease (PD) strains (Sxy > 0.93) and the seven oak leaf scorch (OLS) strains (Sxy > 0.96). However, the two groups were different, with a similarity index of 0.67, confirming the presence of a PD DNA cluster and suggesting the presence of a new OLS cluster. The control plum leaf scald strains (two strains) together with the periwinkle wilt strain had a much smaller similarity index (0.44) compared with the PD and OLS clusters.