Characterisation and mapping of a Globodera pallida resistance derived from the wild potato species Solanum spegazzinii.

ABSTRACT:

Key message

A new resistance locus acting against the potato cyst nematode Globodera pallida was mapped to chromosome VI in the diploid wild potato species Solanum spegazzinii CPC 7195. The potato cyst nematodes (PCN) Globodera pallida and Globodera rostochiensis are economically important potato pests in almost all regions where potato is grown. One important management strategy involves deployment through introgression breeding into modern cultivars of new sources of naturally occurring resistance from wild potato species. We describe a new source of resistance to G. pallida from wild potato germplasm. The diploid species Solanum spegazzinii Bitter accession CPC 7195 shows resistance to G. pallida pathotypes Pa1 and Pa2/3. A cross and first backcross of S. spegazzinii with Solanu

SUBMITTER: Gartner U 

PROVIDER: S-EPMC11018675 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature