| molecular characterization of two distinct begomoviruses from papaya in china. | six papaya samples showing downward leaf curling were collected in guangdong and guangxi provinces, china. the result of tas-elisa showed they were all infected by geminiviruses. comparison of partial dna-a sequences reveals that these virus isolates can be classified into two groups. group i includes isolates g2, g4, g5, g28 and g29 from guangxi province, while isolate gd2 from guangdong province belongs to group ii. the complete dna-a sequence of g2 and gd2 were characterized. sequence compari ... | 2004 | 15550769 |
| [molecular characteristics of dna-a of tomato leaf curl guangdong virus isolate g2]. | virus isolate g2 was isolated from tomato plants showing leaf curl symptoms in guangdong. the complete nucleotide sequence of g2 dna-a was determined to be 2744 nucleotides encoding six potential orfs, with two (av1 and av2) in virus sense and four (ac1, ac2, ac3 and ac4) in complementary sense. g2 dna-a has a typical characteristics of begomovirus genome organization. blast results showed that g2 dna-a belonged to the begomovirus of geminiviridae. pairwise comparisons of g2 dna-a with those of ... | 2005 | 15847162 |