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ARS Home » Pacific West Area » Aberdeen, Idaho » Small Grains and Potato Germplasm Research » Research » Publications at this Location » Publication #389963

Research Project: Potato Genetic Improvement for Enhanced Tuber Quality and Greater Productivity and Sustainability in Western U.S. Production

Location: Small Grains and Potato Germplasm Research

Title: Going wild with potato by harnessing the potential of crop wild relatives in breeding

item Anglin, Noelle
item LINDQVIST-KREUZE, HANNELE - International Potato Center
item APONTE, MARIELA - International Potato Center
item MANRIQUE, NORMA - International Potato Center
item TAI, HELEN - Agriculture And Agri-Food Canada
item STROMVIK, MARTINA - McGill University - Canada
item BIZIMUNGU, BENOIT - Agriculture And Agri-Food Canada
item ACHAKKAGARI, SAI - McGill University - Canada

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 11/20/2021
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: Introgression of specific disease resistance genes from wild potato species has played a significant role in potato breeding. However, relativelyonly a few species have ever been used and the vast resource of crop wild relatives (CWRs) remains largely untapped. The International Potato Center (CIP) Genebank conserves nn wild species, largely as heterogeneous seed accessions to capture maximum diversity, while maintaining lower conservation costs. A systematic characterization effort including both phenotyping, and genotyping, and more recently, whole genome sequencing (WGS) is required to identify the individuals for use in pre-breeding. In the late 1990s, such an effort was made by characterizing the late blight resistance of 133 Solanum accessions in 51 species of 13 taxonomic series of tuber-bearing species. Two decades later, the research culminated in the release of a new disease resistant potato called CIP-Matilde that was announced on the occasion of the 42nd food day in collaboration with Global Crop Diversity Trust (GCDT). This is the story of CIP-Matilde and the on-going efforts to understand the genetic base of late blight resistance of this variety tracing back to its pedigree with crop wild relatives.