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- W4230107711 abstract "Dorsoventral asymmetry of the Antirrhinum corolla depends on expression of the CYC and DICH genes in dorsal petals. One role of these genes is to inhibit DIVARICATA (DIV), a determinant of ventral identity. Therefore, in cyc;dich double mutants ventral identity spreads all around the flower. We show that DIV encodes a protein belonging to the MYB family of transcription factors. Early on in corolla development, DIV affects specifically the growth of ventral and lateral petals but is transcribed in all petals. Analysis of a closely related gene suggests that the lack of effect on dorsal petals is not due to redundancy. More likely, therefore, DIV is regulated posttranscriptionally through a mechanism that depends on CYC and DICH. Later on, DIV affects growth and cell types and is transcribed mostly in a single layer of cells of ventral and lateral petals. This late pattern may itself depend on DIV activity because it fails to be established in a transcribed but inactive div mutant and, conversely, spreads all around the flower in cyc;dich double mutants. PMID: 11937495" @default.
- W4230107711 created "2022-05-11" @default.
- W4230107711 creator A5001481767 @default.
- W4230107711 date "2002-05-16" @default.
- W4230107711 modified "2023-09-26" @default.
- W4230107711 title "Faculty Opinions recommendation of Role of DIVARICATA in the control of dorsoventral asymmetry in Antirrhinum flowers." @default.
- W4230107711 doi "https://doi.org/10.3410/f.1005888.76905" @default.
- W4230107711 hasPublicationYear "2002" @default.
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