Publications by authors named "D Manicacci"
MADS-box transcription factors are important regulators of floral organ identity through their binding to specific motifs, termed CArG, in the promoter of their target genes. Petal initiation and development depend on class A and B genes, but MADS-box genes of the APETALA3 (AP3) clade are key regulators of this process. In the early diverging eudicot Nigella damascena, an apetalous [T] morph is characterized by the lack of expression of the NdAP3-3 gene, with its expression being petal-specific in the wild-type [P] morph.
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- Petal identity is linked to the APETALA3 (AP3) gene lineage, but it’s unclear how this gene network is conserved across different species with petals from various evolutionary backgrounds.
- This study explored the gene regulatory network related to petals in the Ranunculaceae family by analyzing the gene expression differences between wild-type and mutant plants at early developmental stages.
- Findings indicated that, despite different evolutionary origins, a small group of conserved genes is involved in determining petal identity and development across both Ranunculaceae and core eudicots.
In plants, local adaptation across species range is frequent. Yet, much has to be discovered on its environmental drivers, the underlying functional traits and their molecular determinants. Genome scans are popular to uncover outlier loci potentially involved in the genetic architecture of local adaptation, however links between outliers and phenotypic variation are rarely addressed.
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