Isolation and sequence characterization of DNA-A genome of a new begomovirus strain associated with severe leaf curling symptoms of Jatropha curcas L.
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ArticleKAUST Department
Greenhouse Core LabPlant Stress Genomics Research Lab
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2018-04-22Online Publication Date
2018-04-22Print Publication Date
2018-07Permanent link to this record
http://hdl.handle.net/10754/627603
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Begomoviruses belong to the family Geminiviridae are associated with several disease symptoms, such as mosaic and leaf curling in Jatropha curcas. The molecular characterization of these viral strains will help in developing management strategies to control the disease. In this study, J. curcas that was infected with begomovirus and showed acute leaf curling symptoms were identified. DNA-A segment from pathogenic viral strain was isolated and sequenced. The sequenced genome was assembled and characterized in detail. The full-length DNA-A sequence was covered by primer walking. The genome sequence showed the general organization of DNA-A from begomovirus by the distribution of ORFs in both viral and anti-viral strands. The genome size ranged from 2844 bp–2852 bp. Three strains with minor nucleotide variations were identified, and a phylogenetic analysis was performed by comparing the DNA-A segments from other reported begomovirus isolates. The maximum sequence similarity was observed with Euphorbia yellow mosaic virus (FN435995). In the phylogenetic tree, no clustering was observed with previously reported begomovirus strains isolated from J. curcas host. The strains isolated in this study belong to new begomoviral strain that elicits symptoms of leaf curling in J. curcas. The results indicate that the probable origin of the strains is from Jatropha mosaic virus infecting J. gassypifolia. The strains isolated in this study are referred as Jatropha curcas leaf curl India virus (JCLCIV) based on the major symptoms exhibited by host J. curcas.Citation
Chauhan S, Rahman H, Mastan SG, Sudheer PDVN, Reddy MP (2018) Isolation and sequence characterization of DNA-A genome of a new begomovirus strain associated with severe leaf curling symptoms of Jatropha curcas L. Gene. Available: http://dx.doi.org/10.1016/j.gene.2018.04.062.Sponsors
We are thankful to the Council for Scientific and Industrial Research, New Delhi, India for its financial support for the SRF and research associate fellowships.Publisher
Elsevier BVJournal
GenePubMed ID
29684487Additional Links
http://www.sciencedirect.com/science/article/pii/S0378111918304360ae974a485f413a2113503eed53cd6c53
10.1016/j.gene.2018.04.062
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