V. Summary
From the progeny of a single X-rayed female gamete ofNicotiana Tabacum, seven pure-breeding derivative types and seven other types not as yet established in a pure-breeding condition have been obtained. These types differ from one another and from the control in habit, form of leaf, flower and capsule, and in the colour of leaf and flower. At least five of the twenty-four chromosomes of the haploid set ofN. Tabacum have been altered. In the production of the fourteen types transgenations, homozygous deficiencies, duplications and presumably translocations are involved.
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The investigations reported on here have been aided by grants from the Board of Research of the University of California, and from the Committee on the Effects of Radiation of the National Research Council.
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Goodspeed, T.H., Avery, P. The cytogenetics of fourteen types derived from a single X-rayed sex cell ofNicotiana Tabacum . Journ. of Genetics 29, 327–353 (1934). https://doi.org/10.1007/BF02982231
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DOI: https://doi.org/10.1007/BF02982231