Summary
A method of incorporating genetic material from five species of Fragaria and the cultivated strawberry into fertile octoploids is described. A synthetic octoploid derived from a hexaploid x diploid hybrid was crossed to octoploid cultivar breeding lines until a BC2 hybrid was produced. A second synthetic octoploid in which two diploid species and a tetraploid species were combined was crossed to a cultivated strawberry to produce a hybrid breeding clone. The two breeding clones were crossed and 222 seedlings were produced. The seedlings were generally vigorous and fruitful, some having commercial potential.
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References
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Evans, W.D. The production of multispecific octoploids from Fragaria species and the cultivated strawberry. Euphytica 31, 901–907 (1982). https://doi.org/10.1007/BF00039230
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DOI: https://doi.org/10.1007/BF00039230