Genetics and Breeding of Virus Resistance: Traditional Methods

  • C. R. Brown
  • D. Corsini


The potato was introduced to Europe from South America around 1570. By the turn of that century botanical references were noted both in Continental Europe and the British Isles. Approximately a century later the potato was in the initial stages of being adopted as a foodstuff. The phenomenon of decline in performance of potato clonal cultivars has been noted thoughout the history of its utilization as a crop. Degenerated cultivars were replaced by new vigorous ones that, in time, also declined. Reference was also made to a condition called “Curl,” which was undoubtedly indicative of the presence of potato leafroll virus (Salaman, 1985). It was not until the twentieth century, however, with the discovery of the existence of viruses in plants, that an understanding of the importance of virus in potato production began to emerge (Salaman, 1921). The instigation of hygienic seed production came from the recognition that seed grown in certain colder areas was much more vigorous than that from warmer areas. This was shortly followed by attempts to utilize wild species and primitive cultivars in breeding as sources of virus resistance. Expeditions to collect Solanum germplasm in a systematic fashion began in the 1930’s and have continued to this day. Today, there is a large body of information available on virus resistance present in wild and cultivated germplasm, and the breeding and genetics of virus resistance. The genetics and breeding of virus resistance in potato have recently been thoroughly reviewed by Swiezynski (1994) and Valkonen (1994), and this review will hopefully add further accessibility and interpretation to this growing body of knowledge. Table 13.1.1 presents a summary of the germplasm sources of virus resistance, type of resistance and gene symbols that have been applied.


Potato Virus Virus Resistance Tobacco Rattle Virus Potato Leaf Roll Virus Potato Leafroll Virus 
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Copyright information

© Springer Science+Business Media Dordrecht 2001

Authors and Affiliations

  • C. R. Brown
    • 1
  • D. Corsini
    • 1
    • 2
  1. 1.USDA/ARSProsserUSA
  2. 2.USDA/ARSAberdeenUSA

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