Pre-breeding of potato (<em>Solanum tuberosum</em>) to improve resistance against <em>Phytophthora infestans</em>

Authors

  • Johanna Blossei Julius Kühn-Institut (JKI) – Bundesforschungsinstitut für Kulturpflanzen, Institut für Züchtungsforschung an landwirtschaftlichen Kulturen, Sanitz, OT Groß Lüsewitz
  • Michael Sprengel Julius Kühn-Institut (JKI) – Bundesforschungsinstitut für Kulturpflanzen, Institut für Züchtungsforschung an landwirtschaftlichen Kulturen, Sanitz, OT Groß Lüsewitz
  • Thilo Hammann Julius Kühn-Institut (JKI) – Bundesforschungsinstitut für Kulturpflanzen, Institut für Züchtungsforschung an landwirtschaftlichen Kulturen, Sanitz, OT Groß Lüsewitz

DOI:

https://doi.org/10.5073/JfK.2020.12.03

Keywords:

Phytophthora infestans, late blight, Solanum tuberosum, potato, genome-wide association study

Abstract

Late blight (Phytophthora infestans Mont. de Bary) causes high yield losses in potato production every year. However, to date there is no approved variety that provides stable resistance. In recent years, pre-breeding clones have been developed at the Julius Kühn Institute that have proven their value in extensive resistance tests. This was accompanied by a genome-wide association study involving 265 pre-breeding clones and approved varieties, respectively, which identified nine markers for five QTL on chromosomes 1, 7, 10, and 11 that are associated with the resistance. These results may help to develop resistant varieties in the future.

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Published

2020-12-01

Issue

Vol. 72 No. 12 (2020)

Section

Original Article

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