Summary
Wheat plants nullisomic for chromosome 4B are male sterile due to the absence of the male fertility gene Ms1. However, plants in which chromosome 4B has been substituted by the preferentially transmitted chromosome 4S1 of Ae. sharonensis are male fertile due to the compensating effect of Ms4 on the alien chromosome. This substitution line has been mutated and three recessive mutation of Ms4 have been selected. Plants homozygous for these mutations are male sterile. The implication of these mutations for hybrid wheat production is discussed.
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King, I.P., Koebner, R.M.D., Reader, S.M. et al. Induction of a mutation in the male fertility gene of the preferentially transmitted Aegilops sharonensis chromosome 4S1 and its application for hybrid wheat production. Euphytica 54, 33–39 (1991). https://doi.org/10.1007/BF00145628
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DOI: https://doi.org/10.1007/BF00145628