Record Details

Replication data for: Wide phenotypic diversity for resistance to Phytophthora infestans found in potato landraces from Peru

International Potato Center Dataverse OAI Archive

View Archive Info
 
 
Field Value
 
Title Replication data for: Wide phenotypic diversity for resistance to Phytophthora infestans found in potato landraces from Peru
 
Identifier https://doi.org/10.21223/P3/KF5LJX
 
Creator Perez, Willmer
Ñahui, Miriam
Ellis, David
Forbes, Gregory
 
Publisher International Potato Center
 
Description The wild and cultivated species of potato have been utilized in potato breeding to good effect but only a very small sample of the available biodiversity has been exploited. In total, 468 accessions of wild and cultivated species of potato were assessed for resistance to the oomycete pathogen Phytophthora infestans using greenhouse assays. Wide phenotypic variation for resistance was found within a species (i.e., among accessions) but not among species which, on average, were similar. Nineteen accessions had resistance levels better than or similar to the variety Chucmarina, which is routinely used by the International Potato Center as a resistant control. Surprisingly, a number of accessions were significantly more susceptible than the susceptible control, Tomasa Condemayta. Frequency histograms of species indicated continuous variation for resistance with little evidence for functional resistance genes.
 
Subject Agricultural Sciences
Potato landraces
Late blight
Resistance
Phenotypic
 
Language English
 
Contributor Administrator, CIP
CGIAR Research Program on Roots, Tubers and Bananas (RTB)
International Potato Center
Project: Global Late Blight
 
Type xls