Sweetpotato crop wild relative resistence to SPCS Virus

Sweetpotato Virus Disease (SPVD) is a significant problem in sweetpotato cultivation globally, particularly in Sub-Saharan Africa. It results from the interaction of two viruses the whitefly-transmitted Sweetpotato Chlorotic Stunt Virus (SPCSV) and the aphid-borne Sweetpotato Feathery Mottle Virus (SPFMV). Currently, control methods are limited to sanitation and virus-free planting material. Due to the lack of natural resistance to SPVD in the sweetpotato crop genepool, crop wild relatives are a potential alternative source of resistance genes. To evaluate sweetpotato crop wild relatives for resistance to SPCSV and SPFMV 53 accessions of nine species belonging to the Batatas complex, the species most closely related to cultivated sweetpotato, were subjected to repetitive cycles of grafting with infected stem cuttings and subsequent enzyme-linked immunosorbent assay (ELISA) screenings. This subset contains four accessions showing consistent high levels of resistance to SPCSV.

Crop
sweetpotato
Number of accessions
4
Creation date
2023
Published in Genesys
January 10, 2024
Subset metadata

Subset creators


Data manager
Bettina Heider International Potato Center (CIP)

Data and resources


MCPD passport data

MCPD - 17bb119f-1983-481f-a810-0750c9b73396.xlsx

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Accessions

List of accessions included in the subset

PER001 • DOI: 10.18730/7Y5Y
PER001 • DOI: 10.18730/80T4
PER001 • DOI: 10.18730/82AF