More data about this group.
Last database update for these data: 2008-06-04 - Data extracted on 2009-04-14 from the database.
| Field | Value |
|---|---|
| Document type | Journal article: paper |
| Language | English |
| Year | 2002 |
| Authors | Krause-Sakate, R. Le Gall, O. Fakhfakh, H. Peypelut, M. Marrakchi, M. Varveri, C. Pavan, M.A. Souche, S. Lot, H. Zerbini, F.M. Candresse, T. |
| Title | Molecular and biological characterization of Lettuce mosaic virus (LMV) isolates reveals a distinct and widespread type of resistance-breaking isolate: LMV-Most |
| Source | Phytopathology |
| Volume | 92 |
| Issue | 5 |
| Pages | 563-572 |
| Abstract | Lettuce mosaic virus (LMV) causes an economically important seedborne and aphid-transmitted disease of lettuce and ornamental crops worldwide. The genetic diversity among 73 LMV isolates was examined based on a 216-nucleotide sequence at the variable region encoding the NIb-coat protein junction. Three clusters of LMV isolates were distinguished: LMV-Yar, LMV-Greek, and LMV-RoW. In the latter cluster, two subgroups of isolates, LMV-Common and LMV-Most, accounted for a large proportion of the LMV isolates analysed. These two subgroups included the seedborne isolates, consistent with this property contributing a selective advantage and resulting in widespread distribution. In addition to being seedborne, LMV-Most isolates overcome the two resistance genes commonly used in lettuce, mol1 and mol2, and thus represent a potential threat to lettuce cultivation. The complete sequence of an LMV-Most isolate (LMV-AF199) was determined, allowing a better definition of the genetic relationships among LMV-Most, LMV-Common, and an additional isolate of the LMV-RoW cluster. |
| ISSN | 0031-949X |
| ISBN | 0031-949X |
| Descriptors | DNA sequencing Genetic diversity Lettuces Nucleotide sequences Plant Diseases plant pathogens Seedborne fungi lettuce mosaic virus potyviridae potyvirus |