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Discriminating Russet Norkotah intraclonal selections using canonical and cluster analysis

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Abstract

Intraclonal selection has been used to develop improved versions of existing popular potato cultivars. The approach is usually undertaken to overcome trait deficiencies that limit production/acceptance of the cultivar. Because of close genetic relationships, discriminating between strains and the original cultivar is more difficult than discriminating between conventionally derived hybrid cultivars. The objective of this investigation was to determine the genetic relationship between several Russet Norkotah intraclonal selections (strains) using statistical analysis. Russet Norkotah and seven Russet Norkotah strains (TXNS102, TXNS112, TXNS223, TXNS278, TXNS296, CORN3 and CORN8) were grown in 2000 and 2001 in New Brunswick, Canada, and several plant and tuber traits were measured. Hierarchical cluster analysis and canonical discriminant analysis demonstrated that the Russet Norkotah strains differ in a significant manner from the original cultivar and are therefore distinct and unique cultivars.

Resumen

Para desarrollar versiones mejoradas de los cultivares populares existentes se ha utilizado la selección intraclonal. Este enfoque se adopta habitualmente para superar las diferencias que limitan la producción/ aceptación del cultivar. Debido a las relaciones genéticas estrechas, las diferencias entre los strains y el cultivar original son más difíciles de distinguir que las diferencias entre los cultivares híbridos derivados convencionalmente. El objetivo de esta investigación fue el de determinar la relación genética entre varias selecciones intraclonales (strains) de Russet Norkotah utilizando análisis estadísticos. Russet Norkotah y siete strains del mismo cultivar (TXNS102, TXNS112, TXNS223, TXNS278, TXNS296, CORN3 y CORN8) se cultivaron el 2000 y 2001 en New Brunswick, Canadá y se evaluaron varios caracteres de la planta y del tubérculo. Los análisis Jerárquico Cluster y el Discriminante Canónico demostraron que los strains de Russet Norkotah fueron significativamente diferentes del cultivar original y por lo tanto son cultivares diferentes y únicos.

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Authors and Affiliations

  1. Department of Horticultural Sciences, Texas A & M University, 77843-2133, College Station, TX

    J. Creighton Miller

  2. Potato Research Centre, Agriculture and Agri-Food Canada, P.O. Box 20280, E3B 4Z7, Fredericton, NB, Canada

    George C. C. Tai

  3. Global Agri Services, Inc., 376 New Maryland Highway, 3C 1E5, New Maryland, NB, Canada

    Bernard Ouellette

  4. Science/Engineering Services, Texas A & M University Libraries, 77843-5000, College Station, TX

    Jeannie P. Miller

Authors
  1. J. Creighton Miller
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  2. George C. C. Tai
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  3. Bernard Ouellette
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  4. Jeannie P. Miller
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Correspondence to J. Creighton Miller.

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Miller, J.C., Tai, G.C.C., Ouellette, B. et al. Discriminating Russet Norkotah intraclonal selections using canonical and cluster analysis. Am. J. Pot Res 81, 203–207 (2004). https://doi.org/10.1007/BF02871750

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  • DOI: https://doi.org/10.1007/BF02871750

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