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The expression of salt tolerance from Triticum tauschii in hexaploid wheat

The expression of salt tolerance from Triticum tauschii in hexaploid wheat 122 84 84 5 6 D. P. Schachtman E. S. Lagudah Rana Munns CSIRO Division of Plant Industry GPO Box 1600 ACT 2601 Canberra Australia Biology Department 92093-0116 UC-San Diego, La Jolla CA USA Summary Accessions of Triticum tauschii (Coss.) Schmal. (D genome donor to hexaploid wheat) vary in salt tolerance and in the rate that Na + accumulates in leaves. The aim of this study was to determine whether these differences in salt tolerance and leaf Na + concentration would be expressed in hexaploid wheat. Synthetic hexaploids were produced from five T. tauschii accessions varying in salt tolerance and two salt-sensitive T. turgidum cultivars. The degree of salt tolerance of the hexaploids was evaluated as the grain yield per plant in 150 mol m -3 NaCl relative to grain yield in 1 mol m -3 NaCl (control). Sodium concentration in leaf 5 was measured after the leaf was fully expanded. The salt tolerance of the genotypes correlated negatively with the concentration of Na + in leaf 5. The salt tolerance of the synthetic hexaploids was greater than the tetraploid parents primarily due to the maintenance of kernel weight under saline conditions. Synthetic hexaploids varied in salt tolerance with the source of their D genome which demonstrates that genes for salt tolerance from the diploid are expressed at the hexaploid level. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png TAG Theoretical and Applied Genetics Springer Journals

The expression of salt tolerance from Triticum tauschii in hexaploid wheat

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References (18)

Publisher
Springer Journals
Copyright
Copyright © 1992 by Springer-Verlag
Subject
Life Sciences; Biotechnology; Agriculture; Biochemistry, general; Plant Biochemistry; Plant Sciences; Plant Genetics & Genomics
ISSN
0040-5752
eISSN
1432-2242
DOI
10.1007/BF00224174
pmid
24201363
Publisher site
See Article on Publisher Site

Abstract

122 84 84 5 6 D. P. Schachtman E. S. Lagudah Rana Munns CSIRO Division of Plant Industry GPO Box 1600 ACT 2601 Canberra Australia Biology Department 92093-0116 UC-San Diego, La Jolla CA USA Summary Accessions of Triticum tauschii (Coss.) Schmal. (D genome donor to hexaploid wheat) vary in salt tolerance and in the rate that Na + accumulates in leaves. The aim of this study was to determine whether these differences in salt tolerance and leaf Na + concentration would be expressed in hexaploid wheat. Synthetic hexaploids were produced from five T. tauschii accessions varying in salt tolerance and two salt-sensitive T. turgidum cultivars. The degree of salt tolerance of the hexaploids was evaluated as the grain yield per plant in 150 mol m -3 NaCl relative to grain yield in 1 mol m -3 NaCl (control). Sodium concentration in leaf 5 was measured after the leaf was fully expanded. The salt tolerance of the genotypes correlated negatively with the concentration of Na + in leaf 5. The salt tolerance of the synthetic hexaploids was greater than the tetraploid parents primarily due to the maintenance of kernel weight under saline conditions. Synthetic hexaploids varied in salt tolerance with the source of their D genome which demonstrates that genes for salt tolerance from the diploid are expressed at the hexaploid level.

Journal

TAG Theoretical and Applied Genetics – Springer Journals

Published: Aug 1, 1992

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