| genetic composition and complexity of virus populations at tungro-endemic and outbreak rice sites. | we have recently demonstrated the geographic isolation of rice tungro bacilliform virus (rtbv) populations in the tungro-endemic provinces of isabela and north cotabato, philippines. in this study, we examined the genetic structure of the virus populations at the tungro-outbreak sites of lanao del norte, a province adjacent to north cotabato. we also analyzed the virus populations at the tungro-endemic sites of subang, indonesia, and dien khanh, vietnam. total dna extracts from 274 isolates were ... | 2000 | 11205110 |