title: Evidence for transposition in Petunia.
abstract: 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.
authors.affiliation: Institute of Genetics, University of Amsterdam, Kruislaan 318, NL-1098 SM, Amsterdam, The Netherlands.
authors.forename: H J
authors.initials: HJ
authors.lastname: Wijsman