Theoretical and Applied Genetics

, Volume 74, Issue 5, pp 584–588 | Cite as

Chromosomal location of a K/Na discrimination character in the D genome of wheat

  • J. Gorham
  • C. Hardy
  • R. G. Wyn Jones
  • L. R. Joppa
  • C. N. Law


K/Na ratios have been determined in the leaves of salt-treated plants of 14 disomic substitution lines in which each of the D-genome chromosomes replaces the homoeologous A- or B-genome chromosome in the tetraploid wheat variety Langdon (AABB genome). Aneuploid lines of hexaploid bread wheat (cv Chinese Spring) having a reduced or an enhanced complement of chromosome 4D have also been examined. These investigations show that the gene(s) determining K/Na ratios in the leaves of wheat plants grown in the presence of salt is located on the long arm of chromosome 4D.

Key words

Triticum aestivum T. turgidum Aegilops squarrosa Cation uptake D genome 


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Copyright information

© Springer-Verlag 1987

Authors and Affiliations

  • J. Gorham
    • 1
  • C. Hardy
    • 1
  • R. G. Wyn Jones
    • 1
  • L. R. Joppa
    • 2
  • C. N. Law
    • 3
  1. 1.Centre for Arid Zone Studies, Department of Biochemistry and Soil ScienceUniversity College of North WalesBangor, GwyneddWales, UK
  2. 2.United States Department of AgricultureAgricultural Research Service, North Dakota State UniversityFargoUSA
  3. 3.Plant Breeding InstituteTrumpingtonUK

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