Journal of Plant Pathology (2008) 90, 475-478

C.X. Yang, G.J. Cui, J. Zhang, X.F. Weng, L.H. Xie and Z.J. Wu (2008)
Molecular characterization of a distinct begomovirus species isolated from Emilia sonchifolia
Journal of Plant Pathology 90 (3), 475-478
Abstract: Samples of Emilia sonchifolia leaves showing conspicuous yellow veins were collected in the Chinese province of Fujian. A specific 500 bp product was consistently amplified from total DNA extracts from symptomatic leaves with universal primers designed to amplify portions of the intergenic region and AV2 gene of begomoviral DNA-A component. Comparison of partial DNA sequences revealed that these samples were infected by the same virus, thus an isolate denoted Fz1 was selected for further sequence analysis. The complete sequence of Fz1 comprised 2725 nucleotides with typical genomic organization of begomoviral DNA-A. Fz1was most closely related to Vernonia yellow vein virus (VeYVV-[IN:Mad:05], AM182232), with 76.7% nucleotide sequence identity. In line with the demarcation criteria for identifying begomovirus species, Fz1 is considered as a distinct begomovirus, for which the name Emilia yellow vein virus (EmYVV) is proposed. This appears to be the first report of a begomovirus infecting Emilia sonchifolia.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Full text of article
Database assignments for author(s): Zu-Jian Wu

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
identification/taxonomy

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Emilia sonchifolia (weed)		China (south)
Emilia yellow vein virus (in weeds)	Emilia sonchifolia (weed)		China (south)