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Evolutionary developmental genetics of floral symmetry: the revealing power of Linnaeus' monstrous flower.

BioEssays : news and reviews in molecular, cellular and developmental biology - 1 Mar 2000

Theissen G

Abstract excerpt

Actinomorphic flowers have several planes of reflectional symmetry while zygomorphic flowers have just one. In a number of independent cases, actinomorphic flowers have arisen from zygomorphic ones during evolution. A famous example, studied by Linnaeus, is an actinomorphic variety of the common toadflax Linaria vulgaris. It has been shown now that this mutant carries a defect in LCYC, a homolog of the CYC gene,...

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PMID: 10684579
DOI: 10.1002/(SICI)1521-1878(200003)22:3<209::AID-BIES1>3.0.CO;2-J

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

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