Coen ES et al. 1986
- Authors:
Coen ES. Carpenter R. Martin C.
- Title:
Transposable elements generate novel spatial patterns of gene expression
in Antirrhinum majus.
- Reference location:
Cell. 47(2):285-96, 1986 Oct 24.
- Abstract:
The pallida gene of A. majus encodes a product required for the synthesis
of red flower pigment. We have shown that the unstable pallida(recurrens)
mutation is due to the insertion of the Tam3 transposable element near the
promoter of the gene. Imprecise excision of Tam3 alters pallida gene
expression and generates new spatial patterns or different intensities of
flower pigmentation. Distinct spatial patterns may also result from
rearrangements induced by Tam3 that alter the relative position of the
pallida gene. Changes in Tam3 structure or position result in new unstable
phenotypes. These findings suggest that genes may be rendered genetically
hypervariable as a consequence of transposable element insertion and
excision.
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