Summary
In Petunia interaction is described between a trans-regulatory genetic element Bi and responsive anthocyanin alleles, resulting in a variegated flower colour pattern. Crosses segregated white-flowering plants that had lost the Bi element and could be shown to contain a responsive allele by the colour pattern resulting from interaction with the standard variegated parent. A weak mutant of the Bi element is described. Some pure lines of Petunia contained the Bi element, others did not. In two lines it could be mapped to chromosome I.
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Communicated by H. F. Linskens
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Wijsman, H.J.W. Evidence for transposition in Petunia. Theoret. Appl. Genetics 71, 791–796 (1986). https://doi.org/10.1007/BF00276419
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DOI: https://doi.org/10.1007/BF00276419