Geminiviruses: a tale of a plasmid becoming a virus |
| |
| Authors: | Mart Krupovic Janne J Ravantti Dennis H Bamford |
| |
| Institution: | (1) Department of Biological and Environmental Sciences and Institute of Biotechnology, Biocenter 2, University of Helsinki, Viikinkaari 5, P.O. Box 56, FIN-00014 Helsinki, Finland |
| |
| Abstract: | Background Geminiviruses (family Geminiviridae) are small single-stranded (ss) DNA viruses infecting plants. Their virion morphology is unique in the known viral world
– two incomplete T = 1 icosahedra are joined together to form twinned particles. Geminiviruses utilize a rolling-circle mode to replicate their
genomes. A limited sequence similarity between the three conserved motifs of the rolling-circle replication initiation proteins
(RCR Reps) of geminiviruses and plasmids of Gram-positive bacteria allowed Koonin and Ilyina to propose that geminiviruses
descend from bacterial replicons. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
