Complete genome sequence of bean common mosaic virus from black bean in Vietnam.

This is a report of a complete genome sequence of bean common mosaic virus in Vietnam. This virus shares around 99% nucleotide identity with a Nepal isolate.

The 'emergence' of turnip mosaic virus was probably a 'gene-for-quasi-gene' event.

Turnip mosaic potyvirus is a virus of brassicas that emerged from a lineage of monocotyledon-infecting potyviruses about 1000 years ago. In vivo and in silico studies all indicate that sites, primarily in its protein 3 (P3) and cylindrical inclusion protein (CI) genes, but also its small 6 kDa 2 protein (6K2) and genome-linked viral protein (VPg) genes, control host specificity in a dynamic way. It is most likely that non-unique combinations of transient viral genomic single nucleotide polymorphisms (SNPs), not all of them non-synonymous, allowed the host switch to occur.

Genetic variation of the Turnip mosaic virus population of Vietnam: a case study of founder, regional and local influences.

Turnip mosaic virus (TuMV) is one of the most important viruses infecting a wide range of plant species, primarily from the family Brassicaceae. Thirty TuMV isolates were collected from Brassica and Raphanus plants in Vietnam during 2006-2008. Host reaction studies showed that many of the isolates belonged to Brassica/Raphanus (BR) host-infecting type.