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Potato Germplasm Enhancement Enters the Genomics Era

USDA Agricultural Research Service, Vegetable Crops Research Unit, Madison, WI 33003, USA
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Agronomy 2019, 9(10), 575; https://doi.org/10.3390/agronomy9100575
Received: 26 July 2019 / Revised: 6 September 2019 / Accepted: 18 September 2019 / Published: 23 September 2019
(This article belongs to the Special Issue Potato Genetics and Breeding in the Genomics Era)
The goal of germplasm enhancement is to introgress traits from wild crop relatives into cultivated material and eventually cultivars. It seeks to restore genetic diversity that has been lost over time or to augment cultivated material with novel alleles that improve parents in breeding programs. This paper discusses potato germplasm enhancement efforts in the past, focusing on effective examples such as disease resistance and processing quality. In addition, it outlines new strategies for enhancement efforts, shifting the focus from evaluating phenotypes to tracking and manipulating specific DNA sequences. In the genomics era, germplasm enhancement will increasingly be focused on identifying and introgressing alleles rather than traits. Alleles will come from a broad pool of genetic resources that include wild species relatives of potato, landraces, cultivated potato itself, and distantly-related species. Genomics tools will greatly increase the efficiency of introgressing multi-genic traits and will make it possible to identify rare alleles and utilize recessive alleles. View Full-Text
Keywords: Solanum tuberosum; potato breeding; potato genebank; biotechnology; wild potato species; Solanaceae Solanum tuberosum; potato breeding; potato genebank; biotechnology; wild potato species; Solanaceae
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MDPI and ACS Style

Bethke, P.C.; Halterman, D.A.; Jansky, S.H. Potato Germplasm Enhancement Enters the Genomics Era. Agronomy 2019, 9, 575. https://doi.org/10.3390/agronomy9100575

AMA Style

Bethke PC, Halterman DA, Jansky SH. Potato Germplasm Enhancement Enters the Genomics Era. Agronomy. 2019; 9(10):575. https://doi.org/10.3390/agronomy9100575

Chicago/Turabian Style

Bethke, Paul C., Dennis A. Halterman, and Shelley H. Jansky 2019. "Potato Germplasm Enhancement Enters the Genomics Era" Agronomy 9, no. 10: 575. https://doi.org/10.3390/agronomy9100575

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