作者: Lucille C. Villegas , Arnis Druka , Narceo B. Bajet , Roger Hull
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摘要: Restriction fragment length polymorphisms (RFLPs) were found in 27 full genome clones from a glasshouse isolate of rice tungro bacilliform pararetrovirus (RTBV) the International Rice Research Institute (IRRI), Philippines and 5 field isolates different parts Philippines. There was much less variation between IRRI than clones. The RFLPs due to single base changes represented about 10% potential sites. Sequencing across region nt 7772 7989 confirmed that differed published sequence more did most common substitutions G > A, A T C. Sequence heterogeneity also noted PCR products RTBV DNA isolates. These observations are discussed relation quasispecies population concept viruses.