Theoretical and Applied Genetics

, Volume 98, Issue 8, pp 1293–1303

Mapping of chromosome regions conferring boron toxicity tolerance in barley (Hordeum vulgare L.)

  • S. P. Jefferies
  • A. R. Barr
  • A. Karakousis
  • J. M. Kretschmer
  • S. Manning
  • K. J. Chalmers
  • J. C. Nelson
  • A. K. M. R. Islam
  • P. Langridge

DOI: 10.1007/s001220051195

Cite this article as:
Jefferies, S., Barr, A., Karakousis, A. et al. Theor Appl Genet (1999) 98: 1293. doi:10.1007/s001220051195

Abstract

 Boron toxicity has been recognised as an important problem limiting production in the low-rainfall regions of southern Australia, West Asia and North Africa. Genetic variation for boron toxicity tolerance in barley has been characterised but the mode of inheritance and the location of genes controlling tolerance were not previously known. A population of 150 doubled-haploid lines from a cross between a boron toxicity tolerant Algerian landrace, Sahara 3771, and the intolerant Australian cultivar Clipper was screened in four tolerance assays. An RFLP linkage map of the Clipper×Sahara population was used to identify chromosomal regions associated with boron tolerance in barley. Interval regression-mapping allowed the detection of four chromosomal regions involved in the boron tolerance traits measured. A region on chromosome 2H was associated with leaf-symptom expression, a region on chromosome 3H was associated with a reduction of the affect of boron toxicity on root growth suppression, a region on chromosome 6H was associated with reduced boron uptake, and a region on chromosome 4H was also associated with the control of boron uptake as well as being associated with root-length response, dry matter production and symptom expression. The benefits and potential of marker-assisted selection for boron toxicity tolerance are discussed.

Key words Boron toxicity Boron tolerance RFLP mapping Barley 

Copyright information

© Springer-Verlag Berlin Heidelberg 1999

Authors and Affiliations

  • S. P. Jefferies
    • 1
  • A. R. Barr
    • 1
  • A. Karakousis
    • 2
  • J. M. Kretschmer
    • 2
  • S. Manning
    • 2
  • K. J. Chalmers
    • 2
  • J. C. Nelson
    • 3
  • A. K. M. R. Islam
    • 1
  • P. Langridge
    • 2
  1. 1.Department of Plant Science, Waite Campus, University of Adelaide, South Australia 5064AU
  2. 2.ARC Special Research Centre for Basic and Applied Plant Molecular Biology, and CRC for Molecular Plant Breeding, Department of Plant Science, Waite Campus, University of Adelaide, South Australia 5064AU
  3. 3.Department of Plant Sciences, The University of Western Australia, Western Australia 6907AU

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