ArticleEvoDevo2022
A CYC-RAD-DIV-DRIF interaction likely pre-dates the origin of floral monosymmetry in Lamiales.
Article in EvoDevo, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- TCP Transcription Factors in Plant Reproductive Development: Juggling Multiple Roles.Biomolecules · 2023Review
- Delphinieae flowers originated from the rewiring of interactions between duplicated and diversified floral organ identity and symmetry genes.The Plant cell · 2023Article
- Advances in Research on the Regulation of Floral Development byCurrent issues in molecular biology · 2023Review
- Genetic control of the lateral petal shape and identity of asymmetric flowers in mungbean (Frontiers in plant science · 2022Article
- A perspective on the molecular mechanism in the control of organ internal (IN) asymmetry during petal development.Horticulture research · 2022Article
- Evolutionary analyses and expression patterns of TCP genes in Ranunculales.Frontiers in plant science · 2022Article
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Authors and funding
2 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAn outstanding question in evolutionary biology is how genetic interactions defining novel traits evolve. They may evolve either by de novo assembly of previously non-interacting genes or by en bloc co-option of interactions from other functions. We tested these hypotheses in the context of a novel phenotype-Lamiales flower monosymmetry-defined by a developmental program that relies on regulatory interaction among CYCLOIDEA, RADIALIS, DIVARICATA, and DRIF gene products. In Antirrhinum majus (snapdragon), representing Lamiales, we tested whether components of this program likely function beyond their previously known role in petal and stamen development. In Solanum lycopersicum (tomato), representing Solanales which diverged from Lamiales before the origin of Lamiales floral monosymmetry, we additionally tested for regulatory interactions in this program.
resultsWe found that RADIALIS, DIVARICATA, and DRIF are expressed in snapdragon ovaries and developing fruit, similar to their homologs during tomato fruit development. In addition, we found that a tomato CYCLOIDEA ortholog positively regulates a tomato RADIALIS ortholog.
conclusionOur results provide preliminary support to the hypothesis that the developmental program defining floral monosymmetry in Lamiales was co-opted en bloc from a function in carpel development. This expands our understanding of novel trait evolution facilitated by co-option of existing regulatory interactions.
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