ArticleBMC biology2019
Strigolactone synthesis is ancestral in land plants, but canonical strigolactone signalling is a flowering plant innovation.
Article in BMC biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.
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55 citing papers in PubMed, 125 citations in OpenAlex.
- Structural and functional characterisation of a reconstructed ancestral strigolactone receptor.The Plant journal : for cell and molecular biology · 2026Article
- Divergent strigolactones or karrikins signaling is mediated by preferred AtD14/KAI2-MAX2-SMXL complex targeting specific SMXL domains.iScience · 2026Article
- Evolutionary shifts in plant adaptation mediated by phytohormones.Plant communications · 2026Review
- Genome-Wide Identification and Characterization of theInternational journal of molecular sciences · 2026Article
- CRISPR/Cas9-mediated mutagenesis of SMXL4 alters plant height and yield-related traits in rice (cv. Samkwang).Scientific reports · 2026Article
- SMXL3 controls multiple aspects of Arabidopsis development via EAR motif-dependent and -independent functions.The Plant journal : for cell and molecular biology · 2026Article
- Molecular insights into volatile organic compound sensing and signaling in plants.The Plant journal : for cell and molecular biology · 2026Review
- Desiccation Tolerance in Moss and Liverwort: Insights into the Evolutionary Mechanisms of Terrestrialization.International journal of molecular sciences · 2026Review
- Advances in Plant Species Recognition Mediated by Root Exudates: A Review.Plants (Basel, Switzerland) · 2025Review
- An N-terminal domain specifies developmental control by the SMAX1-LIKE family of transcriptional regulators inProceedings of the National Academy of Sciences of the United States of America · 2025Article
- The Multifaceted Impact of Karrikin Signaling in Plants.International journal of molecular sciences · 2025Review
- Evolution of theProceedings of the National Academy of Sciences of the United States of America · 2025Article
- KAI2-dependent signaling controls vegetative reproduction in Marchantia polymorpha through activation of LOG-mediated cytokinin synthesis (14).Nature communications · 2025Article
- Morphophysiological and transcriptomic analyses during the development of microspores and megaspores inFrontiers in plant science · 2025Article
- Characterization of a β-carotene isomerase from the cyanobacteriumPhilosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024Article
- The receptor-like kinase ARK controls symbiotic balance across land plants.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- SUPPRESSOR OF MAX2 1-LIKE (SMXL) homologs are MAX2-dependent repressors of Physcomitrium patens growth.The Plant cell · 2024Article
- Comprehensive Evolutionary Analysis of theInternational journal of molecular sciences · 2024Article
- Cracking the enigma: understanding strigolactone signalling in the rhizosphere.Journal of experimental botany · 2024Review
- Article
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Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundStrigolactones (SLs) are an important class of carotenoid-derived signalling molecule in plants, which function both as exogenous signals in the rhizosphere and as endogenous plant hormones. In flowering plants, SLs are synthesized by a core pathway of four enzymes and are perceived by the DWARF14 (D14) receptor, leading to degradation of SMAX1-LIKE7 (SMXL7) target proteins in a manner dependent on the SCF
resultsWe have utilized recently-generated genomic and transcriptomic sequences from across the land plant clade to resolve the origin of each known component of SL synthesis and signalling. We show that all enzymes in the core SL synthesis pathway originated at or before the base of land plants, consistent with the previously observed distribution of SLs themselves in land plant lineages. We also show that the late-acting enzyme LATERAL BRANCHING OXIDOREDUCTASE (LBO) may be considerably more ancient than previously thought. We perform a detailed phylogenetic analysis of SMXL proteins and show that specific SL target proteins only arose in flowering plants. We also assess diversity and protein structure in the SMXL family, identifying several previously unknown clades.
conclusionsOverall, our results suggest that SL synthesis is much more ancient than canonical SL signalling, consistent with the idea that SLs first evolved as rhizosphere signals and were only recruited much later as hormonal signals.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.