ArticlePlant physiology2023
Gene duplications facilitate C4-CAM compatibility in common purslane.
Article in Plant physiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 15 citations in OpenAlex.
- Open questions on facultative C4-CAM photosynthesis in Portulaca.Journal of experimental botany · 2026Review
- Genome evolution and regulatory dynamics underlying salt stress tolerance in the halophyte Halogeton arachnoideus.Communications biology · 2026Article
- Screening and Stability Validation of RT-qPCR Reference Genes inInternational journal of molecular sciences · 2026Article
- Why "Where" Matters as Much as "How Much": Single-Cell and Spatial Transcriptomics in Plants.International journal of molecular sciences · 2025Review
- Integrated metabolome and transcriptome analysis provides insights into anthocyanin biosynthesis in Portulaca oleracea.BMC plant biology · 2025Article
- Resilience of Portulaca plants to environmental stresses and the economic potential of their bioactive compounds.Planta · 2025Review
- Evolution of Plant Conserved microRNAs After Whole-Genome Duplications.Genome biology and evolution · 2025Article
- Differential Expression of Amaranth AtrDODA Gene Family Members in Betalain Synthesis and Functional Analysis of AtrDODA1-1 Promoter.Plants (Basel, Switzerland) · 2025Article
- An Effective Somatic-Cell Regeneration and Genetic Transformation Method Mediated byPlants (Basel, Switzerland) · 2024Article
- The CAM lineages of planet Earth.Annals of botany · 2023Article
Corrections and comments
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Authors and funding
11 authors at 4 institutions in 3 countries.
Funding
Abstract
Common purslane (Portulaca oleracea) integrates both C4 and crassulacean acid metabolism (CAM) photosynthesis pathways and is a promising model plant to explore C4-CAM plasticity. Here, we report a high-quality chromosome-level genome of nicotinamide adenine dinucleotide (NAD)-malic enzyme (ME) subtype common purslane that provides evidence for 2 rounds of whole-genome duplication (WGD) with an ancient WGD (P-β) in the common ancestor to Portulacaceae and Cactaceae around 66.30 million years ago (Mya) and another (Po-α) specific to common purslane lineage around 7.74 Mya. A larger number of gene copies encoding key enzymes/transporters involved in C4 and CAM pathways were detected in common purslane than in related species. Phylogeny, conserved functional site, and collinearity analyses revealed that the Po-α WGD produced the phosphoenolpyruvate carboxylase-encoded gene copies used for photosynthesis in common purslane, while the P-β WGD event produced 2 ancestral genes of functionally differentiated (C4- and CAM-specific) beta carbonic anhydrases involved in the C4 + CAM pathways. Additionally, cis-element enrichment analysis in the promoters showed that CAM-specific genes have recruited both evening and midnight circadian elements as well as the Abscisic acid (ABA)-independent regulatory module mediated by ethylene-response factor cis-elements. Overall, this study provides insights into the origin and evolutionary process of C4 and CAM pathways in common purslane, as well as potential targets for engineering crops by integrating C4 or CAM metabolism.
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Registered trials
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