Global genetics and invasion history of the potato powdery scab pathogen, Spongospora subterranea f.sp. subterranea.

ABSTRACT: Spongospora subterranea f. sp. subterranea (Sss) causes two diseases on potato (Solanum tuberosum), lesions on tubers and galls on roots, which are economically important worldwide. Knowledge of global genetic diversity and population structure of pathogens is essential for disease management including resistance breeding. A combination of microsatellite and DNA sequence data was used to investigate the structure and invasion history of Sss. South American populations (four countries, 132 samples) were consistently more diverse than those from all other regions (15 countries, 566 samples), in agreement with the hypothesis that Sss originated in South America where potato was domesticated. A substantial genetic differentiation was found between root and tuber-derived samples from South Amer

SUBMITTER: Gau RD 

PROVIDER: S-EPMC3695870 | biostudies-literature | 2013

REPOSITORIES: biostudies-literature