The effect of the crossability loci Kr1 and Kr2 on fertilization frequency in hexaploid wheat x maize crosses

@article{Laurie2004TheEO,
  title={The effect of the crossability loci Kr1 and Kr2 on fertilization frequency in hexaploid wheat x maize crosses},
  author={David A. Laurie and Michael D. Bennett},
  journal={Theoretical and Applied Genetics},
  year={2004},
  volume={73},
  pages={403-409}
}
SummaryDominant alleles of the Kr1 and Kr2 genes reduce the crossability of hexaploid wheat with many alien species, including rye and Hordeum bulbosum, with Kr1 having the greater effect. However, a cytological study of wheat ovaries fixed 48 h after pollination showed that the wheat genotypes ‘Highbury’ (kr1, Kr2) and ‘Chinese Spring (Hope 5B)’ (kr1, kr2) were crossable with ‘Seneca 60’ maize, fertilization occurring in 14.4 and 30.7% of embryo sacs respectively. The latter figure was similar… 

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