Molecular Breeding

, Volume 28, Issue 4, pp 535–547

Genotyping of pedigreed apple breeding material with a genome-covering set of SSRs: trueness-to-type of cultivars and their parentages

  • K. M. Evans
  • A. Patocchi
  • F. Rezzonico
  • F. Mathis
  • C. E. Durel
  • F. Fernández-Fernández
  • A. Boudichevskaia
  • F. Dunemann
  • M. Stankiewicz-Kosyl
  • L. Gianfranceschi
  • M. Komjanc
  • M. Lateur
  • M. Madduri
  • Y. Noordijk
  • W. E. van de Weg
Article

Abstract

Apple cultivars and breeding lines that represent much of the diversity currently present in major European breeding programmes and are genetically related by their pedigree were examined for the trueness of their identity and parentage by consistency in marker scores using a genome-covering set of 80 microsatellite (SSR) markers and an ‘identity-by-descent’ approach. One hundred and twenty-five individuals were validated for the trueness-to-type of both their parents and 49 were validated for one of their parents, their second being unknown (23 individuals) or not available in this study (26 individuals). In addition, 15 individuals for which we lacked one of or both the direct parents were validated by consistency with tested parents of earlier generations. Furthermore, the identity of 28 founder cultivars was validated, their marker scores being consistent with descending cultivars and breeding lines. Four of the eight triploids identified were clearly shown to have arisen from unreduced egg cells. The assumed pedigree of 15 further individuals was found to be incorrect; fully consistent pedigrees were suggested for three of the cultivars. The pedigrees of a further eight individuals were confirmed through inference from the molecular data.

Keywords

Malus × domestica Borkh Microsatellites Founders Triploid 

Supplementary material

11032_2010_9502_MOESM1_ESM.doc (96 kb)
Supplementary material 1 (DOC 96 kb)
11032_2010_9502_MOESM2_ESM.doc (76 kb)
Supplementary material 2 (DOC 75 kb)

Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • K. M. Evans
    • 1
    • 10
  • A. Patocchi
    • 2
    • 11
  • F. Rezzonico
    • 2
    • 11
  • F. Mathis
    • 3
  • C. E. Durel
    • 3
  • F. Fernández-Fernández
    • 1
  • A. Boudichevskaia
    • 4
    • 12
  • F. Dunemann
    • 4
  • M. Stankiewicz-Kosyl
    • 5
  • L. Gianfranceschi
    • 6
  • M. Komjanc
    • 7
  • M. Lateur
    • 8
  • M. Madduri
    • 9
  • Y. Noordijk
    • 9
  • W. E. van de Weg
    • 9
  1. 1.East Malling ResearchEast MallingUK
  2. 2.Plant PathologyInstitute of Integrative Biology (IBZ), ETH ZurichZurichSwitzerland
  3. 3.Genetics and Horticulture (GenHort), UMR1259 INRA/UA/AgroCampus-OuestINRA Centre d’Angers-NantesBeaucouzé CedexFrance
  4. 4.Bundesanstalt für Züchtungsforschung an KulturpflanzenInstitut für ObstzüchtungDresdenGermany
  5. 5.Laboratory of Basic Research in Horticulture, Faculty of Horticulture and Landscape ArchitectureWarsaw Agricultural University (WAU)WarsawPoland
  6. 6.Department of Biomolecular Sciences and BiotechnologyUniversity of MilanMilanItaly
  7. 7.Istituto Agrario di San Michele all’AdigeSan Michele all’AdigeItaly
  8. 8.Centre Wallon de Recherches Agronomiques (CRA-W)Unité d’Amélioration & Biodiversité, Bâtiment Emile MarchalGemblouxBelgium
  9. 9.Department of Plant Breeding, Plant Research InternationalWageningen University and Research CentreWageningenThe Netherlands
  10. 10.WSU-TFRECWenatcheeUSA
  11. 11.Agroscope Changins-Wädenswil Research StationPlant Protection and Fruit and Vegetable ExtensionWädenswilSwitzerland
  12. 12.Institute of Plant Genetics and Crop Plant Research (IPK)GaterslebenGermany

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