The Effect of Sweet Potato Virus Disease and its Viral Components on Gene Expression Levels in Sweetpotato

in Journal of the American Society for Horticultural Science

Sweet potato virus disease (SPVD) is the most devastating disease of sweetpotato [Ipomoea batatas (L.) Lam.] globally. It is caused by the co-infection of plants with a potyvirus, sweet potato feathery mottle virus (SPFMV), and a crinivirus, sweet potato chlorotic stunt virus (SPCSV). In this study we report the use of cDNA microarrays, containing 2765 features from sweetpotato leaf and storage root libraries, in an effort to assess the effect of this disease and its individual viral components on the gene expression profile of I. batatas cv. Beauregard. Expression analysis revealed that the number of differentially expressed genes (P < 0.05) in plants infected with SPFMV alone and SPCSV alone compared to virus-tested (VT) plants was only 3 and 14, respectively. However, these findings are in contrast with SPVD-affected plants where more than 200 genes were found to be differentially expressed. SPVD-responsive genes are involved in a variety of cellular processes including several that were identified as pathogenesis- or stress-induced.

If the inline PDF is not rendering correctly, you can download the PDF file here.

Contributor Notes

Corresponding author: Don R. LaBonte; Telephone: +225-578-1024; Fax: +225-578-1068; E-mail: DLabonte@agcenter.lsu.edu
All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 198 96 4
PDF Downloads 109 74 4