| molecular characterization of a new begomovirus infecting senecio scandens in china. | three begomovirus isolates, g46, g83 and g84 from senecio scandens showing yellow mosaic symptoms were collected from guangxi province, p.r. china. the isolates were detected by pcr using universal primers for begomoviruses. comparison of partial dna-a sequences (approximately 500 bp) of the isolates revealed their 98.7-99.1% identity. the isolate g46, chosen for complete dna-a sequencing, consisted of 2746 nt and had a typical genomic organization of begomoviruses. the g46 dna-a had the highest ... | 2005 | 16178519 |