Summary
Genetic diversity for micronutrient efficiency among the most highly adapted and advanced hexaploid and tetraploid wheat cultivars in the world is limited compared with alien species of wheat or rye. Therefore, screening for zinc efficiency was conducted in greenhouse experiments under controlled conditions, and in field trials. Different varieties of hexaploid wheat, hexaploid oats and diploid rye, together with hexaploid and octoploid triticales, wheat-Agropyron, wheat-Aegilops and several wheat-alien chromosome addition series were studied. Considerable differences in zinc efficiency were found between wheat and its relatives. Individual chromosomes of Secale, Agropyron and Haynaldia were found to carry major genes for this character. The transfer of alien chromosome segments was effective, demonstrated using several wheat-rye translocation lines. Alien genetic information was clearly expressed in the wheat genetic background. Further experimental introgressions by chromosome manipulation and marker-aided selection may efficiently contribute to wheat improvement in marginal soils.
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© 1997 Springer Science+Business Media Dordrecht
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Schlegel, R. et al. (1997). Screening for zinc efficiency among wheat relatives and their utilisation for alien gene transfer. In: Braun, HJ., Altay, F., Kronstad, W.E., Beniwal, S.P.S., McNab, A. (eds) Wheat: Prospects for Global Improvement. Developments in Plant Breeding, vol 6. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4896-2_48
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DOI: https://doi.org/10.1007/978-94-011-4896-2_48
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