Retrospective identification of hybridogenic walnut plants by SSR fingerprinting and parentage analysis (Articolo in rivista)

Type
Label
  • Retrospective identification of hybridogenic walnut plants by SSR fingerprinting and parentage analysis (Articolo in rivista) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1007/s11032-009-9294-7 (literal)
Alternative label
  • Pollegioni P., Woeste K., Scarascia Mugnozza G. and Malvolti M. E. (2009)
    Retrospective identification of hybridogenic walnut plants by SSR fingerprinting and parentage analysis
    in Molecular breeding
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Pollegioni P., Woeste K., Scarascia Mugnozza G. and Malvolti M. E. (literal)
Pagina inizio
  • 321 (literal)
Pagina fine
  • 335 (literal)
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  • 24 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#note
  • Pollegioni P., Woeste K., Scarascia Mugnozza G. and Malvolti M. E. (2009). “Retrospective identification of hybridogenic walnut plants by SSR fingerprinting and parentage analysis.” Molecular Breeding Doi 10.1007/s11032-009-9294-7 Springer Science+Business Media B.V. 2009. (ISSN 1380-3743-Printed, 1572-9788-Online). (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 4 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • CNR-IBAF, Porano USDA Purdue University, Indiana, USA (literal)
Titolo
  • Retrospective identification of hybridogenic walnut plants by SSR fingerprinting and parentage analysis (literal)
Abstract
  • Juglans × intermedia (Juglans nigra × Juglans regia) is considered the prototype walnut for quality wood production in Europe. Hybridization between the parental species is rare under natural conditions and difficult using controlled pollination because of phenological and genetic incompatibilities. The identification of hybridogenic parents is the first step toward obtaining hybrid progeny. We report the application of microsatellite markers for DNA fingerprinting and parentage analysis of half-sib families collected in a natural mixed population for which no phenological and morphological data were available. Ten nuclear, neutral, simple sequence repeat markers were used to analyse 600 samples. The high levels of polymorphism detected positively influenced the exclusion and identity probabilities. The assignment analysis revealed the presence of 198 diploid J. × intermedia hybrids among the seedling progeny. Maternity checks were performed on all individuals and few errors of sampling were found. Four distinct hybridogenic mother trees were identified, each showing different reproductive success rates. The 198 diploid hybrids belonged to four open-pollinated families based on an analysis of paternity using a likelihood approach. Differential male reproductive success was observed among pollen donors within the research site. Forty-nine of the 198 diploid hybrids detected in four progenies were sired by only three J. regia genotypes. Backward selection might be used to establish new seed orchards for inter-specific F1 hybrid production using genotypes with demonstrated compatibility. (literal)
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