Proposal of updated XYZ system for the production of hybrid wheat seedáček T., Horčička P. (2019): Proposal of updated XYZ system for the production of hybrid wheat seed. Czech J. Genet. Plant Breed., 55: 35-38.
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The following updates have been proposed for the XYZ system for the production of hybrid wheat: The waxy characteristics of the grain were used as a classifying mark. The candidate pollen sterility gene TIP2 was detected in silico based on similarity to known pollen sterility genes in rice. In order to maintain a sterile maternal component, the addition chromosome 7H was proposed, carrying wild-type alleles Waxy-H and TIP2-H. The concept of practical production of the commercial F1 seed was designed.


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