Introgressive Hybridization in Potato Revealed by Novel Cytogenetic and Genomic Technologies

Paola Gaiero, Pablo Speranza, Hans de Jong*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Potato is the third most important food crop in the world and is crucial to ensure food security. However, increasing biotic and abiotic stresses jeopardize its stable production. Fortunately, breeders count on a rich pool of wild relatives that provide sources for disease resistance and tolerance to environmental stresses. To use such traits effectively, breeders require tools that facilitate exploration and exploitation of the genetic diversity of potato wild relatives. Introgression programs to incorporate such alien chromatin into the crop have so far relied on cytogenetic and genetic studies to tap desired traits from these wild resources. The available genetic and cytogenetic tools, supplemented with more recent genomic technologies, can assist in the use of potato relatives in pre-breeding. This information can also facilitate cisgenesis and genome editing to improve potato cultivars. Despite the abundant and rapidly growing genomic information of potato, that of its wild relatives is still limited.
Original languageEnglish
Pages (from-to)607–621
JournalAmerican Journal of Potato Research
Volume95
Issue number6
Early online date19 Jun 2018
DOIs
Publication statusPublished - Dec 2018

Keywords

  • Comparative genomics
  • Introgression
  • Potato wild relatives
  • Pre-breeding

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