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Inheritance of resistance to the leaf aphid Nasonovia ribis-nigri in the wild lettuce species Lactuca virosa

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Summary

Six almost completely resistant (CR) accessions of L. virosa and one partially resistant (PR) accession of this species were intercrossed to investigate the inheritance of resistance and the location of the resistance genes. The CR in all accessions appeared to be governed by one (incompletely) dominant allele designated as Nr and the PR and possibly susceptibility (S) too by a recessive allele nr.

The alleles for CR, PR and S were present on one and the same locus. It is still uncertain whether the alleles for CR in the various accessions are different, the same applies for the alleles for PR and S.

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References

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Authors and Affiliations

  1. Institute for Horticultural Plant Breeding (IVT), P.O. Box 16, Wageningen, the Netherlands

    A. H. Eenink

  2. Department of Entomology, Agricultural University, Binnenhaven 7, Wageningen, the Netherlands

    F. L. Dieleman

Authors
  1. A. H. Eenink
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  2. F. L. Dieleman
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Eenink, A.H., Dieleman, F.L. Inheritance of resistance to the leaf aphid Nasonovia ribis-nigri in the wild lettuce species Lactuca virosa . Euphytica 32, 691–695 (1983). https://doi.org/10.1007/BF00042148

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  • DOI: https://doi.org/10.1007/BF00042148

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