High-throughput characterization and phenotyping of resistance and tolerance to virus infection in sweetpotato.

ABSTRACT: Breeders have made important efforts to develop genotypes able to resist virus attacks in sweetpotato, a major crop providing food security and poverty alleviation to smallholder farmers in many regions of Sub-Saharan Africa, Asia and Latin America. However, a lack of accurate objective quantitative methods for this selection target in sweetpotato prevents a consistent and extensive assessment of large breeding populations. In this study, an approach to characterize and classify resistance in sweetpotato was established by assessing total yield loss and virus load after the infection of the three most common viruses (SPFMV, SPCSV, SPLCV). Twelve sweetpotato genotypes with contrasting reactions to virus infection were grown in the field under three different treatments: pre-infected by the

SUBMITTER: Kreuze JF 

PROVIDER: S-EPMC10751700 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature