2008
DOI: 10.1007/s00427-008-0227-y
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Expression differentiation of CYC-like floral symmetry genes correlated with their protein sequence divergence in Chirita heterotricha (Gesneriaceae)

Abstract: CYCLOIDIEA (CYC) and its homologues have been studied intensively in the model organism Antirrhinum majus and related species regarding their function in controlling floral dorsoventral (adaxial-abaxial) asymmetry, including aborting the adaxial and lateral stamens. This raises the question whether the same mechanism underlies the great morphological diversity of zygomorphy in angiosperms, especially in Lamiales sensu lato, a major clade predominantly with zygomorphic flowers. To address this, we selected a re… Show more

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Cited by 50 publications
(89 citation statements)
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“…Both P. heterotricha CYC1 and snapdragon CYC belong to CYC2 clade of TCP genes, which are widely conserved in floral zygomorphy patterning in the core eudicots (Luo et al, 1996(Luo et al, , 1999Feng et al, 2006;Zachgo, 2007, 2009;Broholm et al, 2008;Gao et al, 2008;Kim Howarth et al, 2011). In snapdragon, floral zygomorphy is established mainly through the CYC/DICH dorsal identity function in controlling the fate of dorsal organs, namely, promoting dorsal petal growth and arresting dorsal stamen development (Luo et al, 1996(Luo et al, , 1999.…”
Section: Discussionmentioning
confidence: 99%
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“…Both P. heterotricha CYC1 and snapdragon CYC belong to CYC2 clade of TCP genes, which are widely conserved in floral zygomorphy patterning in the core eudicots (Luo et al, 1996(Luo et al, , 1999Feng et al, 2006;Zachgo, 2007, 2009;Broholm et al, 2008;Gao et al, 2008;Kim Howarth et al, 2011). In snapdragon, floral zygomorphy is established mainly through the CYC/DICH dorsal identity function in controlling the fate of dorsal organs, namely, promoting dorsal petal growth and arresting dorsal stamen development (Luo et al, 1996(Luo et al, , 1999.…”
Section: Discussionmentioning
confidence: 99%
“…Expression Analyses of CYC1C and CYC1D in Developing P. heterotricha Flowers Our previous RT-PCR results show that CYC2A and CYC2B are only transiently expressed in the very young inflorescences, but CYC1C and CYC1D are transcribed in both young inflorescences and developing flowers with specific expression in the dorsal/lateral floral organs in P. heterotricha (Gao et al, 2008). To explore how floral zygomorphy establishment depends upon specific CYC1 expression in P. heterotricha, here, we further examined their expression patterns in developing flowers by RNA in situ hybridization.…”
Section: Online)mentioning
confidence: 97%
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