作者: M. A. Hughes , J. J. Riggins , F. H. Koch , A. I. Cognato , C. Anderson
DOI: 10.1007/S10530-017-1427-Z
关键词: Invasive species 、 Biology 、 Population 、 Vector (epidemiology) 、 Xyleborus glabratus 、 Persea borbonia 、 Botany 、 Lauraceae 、 Threatened species 、 Laurel wilt
摘要: Laurel wilt is an extraordinarily destructive exotic tree disease in the southeastern United States that involves new-encounter hosts Lauraceae, introduced vector (Xyleborus glabratus) and pathogen symbiont (Raffaelea lauricola). USDA Forest Service Inventory Analysis data were used to estimate over 300 million trees of redbay (Persea borbonia sensu lato) have succumbed since early 2000s (ca 1/3 pre-invasion population). In addition, numerous native shrub species family are susceptible threatened Western Hemisphere. Genetic markers test hypothesis entered North America as a single introduction. With portion cytochrome oxidase I gene, X. glabratus haplotype was detected USA. Similarly, Amplified Fragment Length Polymorphisms indicated 95% (54 57) isolates R. lauricola examined clonal genotype; only minor variation three polymorphic isolates. Similar levels developed after swamp bay (P. palustris) inoculated with each four genotypes lauricola. It proposed founding event responsible for laurel epidemic States.