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Androgenic dihaploids from somatic hybrids between Solanum melongena and S. aethiopicum group gilo as a source of resistance to Fusarium oxysporum f. sp. melongenae

  • Genetic Transformation and Hybridization
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Abstract

Dihaploid plants were obtained through anther culture of somatic hybrids between eggplant and Solanum aethiopicum gilo. The androgenic origin of the dihaploids was demonstrated by ploidy determination (flow cytometry and chloroplast counting) and isozyme and molecular (I-SSR and RAPDs) analyses. The androgenic plants showed significant morphological variability in the traits analysed. Pollen viability in the diploid androgenic plants was drastically reduced with respect to the somatic hybrids; however most of the dihaploids produced parthenocarpic fruits. S. aethiopicum and the somatic hybrids showed complete resistance to fungal wilt caused by Fusarium oxysporum f. sp. melongenae. Out of the 41 dihaploids inoculated, 34 were symptomless. The population of androgenic plants developed may represent a useful source for introgression of the Fusarium resistance trait into eggplant.

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Author notes

  1. F. Rizza

    Present address: Present address: Istituto Sperimentale per la Cerealicoltura, Via S. Protaso 302, 29017, Fiorenzuola d'Arda (PC), Italy

Authors and Affiliations

  1. Istituto Sperimentale per l'Orticoltura, Via Paullese 28, 26836 Montanaso Lombardo (LO), Italy

    F. Rizza, M. Presterà & G. Rotino

  2. Istituto Sperimentale per l'Orticoltura, Via Cavalleggeri 25, 84098 Pontecagnano (SA), Italy

    G. Mennella

  3. Bât. 360, Morphogénèse Végétale Expérimentale, Université Paris Sud, 91405, Orsay Cedex, France

    C. Collonnier & D. Sihachakr

  4. Department of Genetics, University of Delhi – South Campus, Benito Juarez Road, New Delhi-21, India

    V. Kashyap & M. Rajam

Authors
  1. F. Rizza
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  2. G. Mennella
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  3. C. Collonnier
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  4. D. Sihachakr
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  5. V. Kashyap
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  6. M. Rajam
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  7. M. Presterà
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  8. G. Rotino
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Rizza, F., Mennella, G., Collonnier, C. et al. Androgenic dihaploids from somatic hybrids between Solanum melongena and S. aethiopicum group gilo as a source of resistance to Fusarium oxysporum f. sp. melongenae. Plant Cell Rep 20, 1022–1032 (2002). https://doi.org/10.1007/s00299-001-0429-5

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  • DOI: https://doi.org/10.1007/s00299-001-0429-5

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