Journal of Phytopathology (2013) 161, 78-85
Su-Ling Shih, Wen-Shi Tsai, Li-Mei Lee and Lawrence Kenyon (2013)
Molecular characterization of begomoviruses infecting Sauropus androgynus in Thailand
Journal of Phytopathology 161 (2), 78-85
Abstract: Begomoviruses were detected in leaf samples of Sauropus androgynus (L.) Merr. plants showing leaf curling with or without yellowing symptoms in Kamphaeng Saen, Nakhon Pathom, Thailand in 2009 and 2010. From eight plants with symptoms, 17 complete begomoviral DNA-As were amplified by polymerase chain reaction and sequenced. No DNA-B was detected in any of the plants. All the DNA-As had the characteristic begomovirus genome organization of six open reading frames, two in the virion-sense orientation and four in the complementary orientation. Sequence comparison of these virus isolates indicated that one isolate belongs to Tomato leaf curl New Delhi virus, 12 isolates belong to Ageratum yellow vein virus and four isolates belong to a novel species with the tentative name Sauropus leaf curl virus. Five of the eight samples were found to be co-infected by isolates of two different begomovirus species. Recombination analysis indicated that all but one of the isolates were probably the product of one or more recombination events. The results indicated that S. androgynus plants act as natural hosts as well as potential nurseries for genetic recombination between begomovirus species and strains.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Lawrence Kenyon
Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution
Pest and/or beneficial records:
| Beneficial | Pest/Disease/Weed | Crop/Product | Country | Quarant.
|
|---|---|---|---|---|
| Tomato leaf curl New Delhi virus | Star gooseberry (Sauropus androgynus) | Thailand | ||
| Ageratum yellow vein virus | Star gooseberry (Sauropus androgynus) | Thailand | ||
| Sauropus leaf curl virus | Star gooseberry (Sauropus androgynus) | Thailand |
