Abstract
THE cultivated oat Avena sativa (2n = 42) normally forms 21 bivalents at meiosis, but on rare occasions a bivalent fails due either to asynapsis or desynapsis. The irregular transmission of the resulting univalents may lead to the formation of gametes deficient for a chromosome, or with an extra chromosome. If such aneuploid gametes are fertilized by euploid gametes, monosomic or trisomic offspring will arise.
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References
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Riley, R., and Kimber, G., Heredity, 16, 275 (1961).
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HACKER, J., RILEY, R. Aneuploids in Oat Varietal Populations. Nature 197, 924–925 (1963). https://doi.org/10.1038/197924a0
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DOI: https://doi.org/10.1038/197924a0
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