Summary
Aneuploid stocks, which included Triticum aestivum/alien, disomic, chromosome addition lines, wheat/alien, ditelosomic, chromosome addition lines, and the available aneuploids of “Chinese Spring” wheat, were used to locate genes that influence milling energy requirement (ME). Genes that affected ME were found on all seven homoeologous chromosome groups. The addition of complete wheat chromosomes 1B, 1D, 2A, 2D, 5B, 6B, 7B and 7D increased ME. Positive effects were also found in specific chromosome arms: 1BS, 2DS, 5AS, 5BS and 6BL. Wheat chromosome 3B conditioned low ME and the gene(s) responsible was located on the short arm. Other negative effects were attributed to wheat chromosome arms 4BL, 4DL, 5DS and 6DS. Alien chromosome additions that conferred high ME included 2H, 5H, 6H and 7H of barley, Hordeum vulgare and 2R, 2Rα, 4R, 4RL, 6R, 6RL and 7RL of rye, Secale cereale. Those that conferred a low ME included 1H ch of H. chilense, and 6u and 7u of Aegilops umbellulata, 5R and 5RS of S. cereale and 5R m and 5R mS of S. montanum. Although the control of ME is polygenic, there is a major effect of genes located on the short arms of homoeologous group 5 chromosomes.
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Communicated by K. Tsunewaki
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Forster, B.P., Ellis, R.P. Milling energy requirement of the aneuploid stocks of common wheat, including alien addition lines. Theoret. Appl. Genetics 80, 806–809 (1990). https://doi.org/10.1007/BF00224196
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DOI: https://doi.org/10.1007/BF00224196