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Mapping of genes for copper efficiency in rye and the relationship between copper and iron efficiency

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Abstract

A 4B/5R wheat-rye translocation line derived from the Danish wheat variety ‘Viking’ was revealed to be highly copper efficient. The chromosomal exchange includes a very small terminal segment of chromosome arm 5RL of rye which was physically mapped by genomic DNA: DNA in situ hybridization and chromosome analysis. The gene for Cu efficiency (Ce) is linked to a dominant hairy neck character from rye (Ha1) and to two rye-specific leaf esterase loci (Est6, Est7), all of which are postulated to map to the distal part of 5RL. Genes coding for mugineic acid synthetase and 3-hydroxymugineic acid synthetase also on chromosome 5R are not included in the 4B/5R translocation and hence map outside the terminal 5R region. These genetic and molecular markers can be useful tools for large-scale screening in wheat breeding programmes.

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Authors and Affiliations

  1. Institute of Plant Genetics and Crop Plant Research, Corrensstraße 3, D-06466, Gatersleben, Germany

    R. Schlegel & R. Kynast

  2. John Innes Centre for Plant Science Research, Colney, NR4 7UJ, Norwich, UK

    T. Schwarzacher

  3. Institute of Plant Nutrition, University of Hohenheim, 7000, Stuttgart, Germany

    V. Römheld & A. Walter

Authors
  1. R. Schlegel
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  2. R. Kynast
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  3. T. Schwarzacher
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  4. V. Römheld
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  5. A. Walter
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Schlegel, R., Kynast, R., Schwarzacher, T. et al. Mapping of genes for copper efficiency in rye and the relationship between copper and iron efficiency. Plant Soil 154, 61–65 (1993). https://doi.org/10.1007/BF00011072

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  • DOI: https://doi.org/10.1007/BF00011072

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