ArticleJournal of experimental botany2018
Gene duplication and dosage effects during the early emergence of C4 photosynthesis in the grass genus Alloteropsis.
Article in Journal of experimental botany, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed.
- The genome of Eleocharis vivipara elucidates the genetics of CJournal of integrative plant biology · 2024Article
- Genome-Wide Profiling of the ACTIN Gene Family and Its Implications for Agronomic Traits inInternational journal of molecular sciences · 2024Article
- Alloteropsis semialata as a study system for C4 evolution in grasses.Annals of botany · 2023Article
- The Gynandropsis gynandra genome provides insights into whole-genome duplications and the evolution of C4 photosynthesis in Cleomaceae.The Plant cell · 2023Article
- Genome-wide characterization of ubiquitin-conjugating enzyme gene family explores its genetic effects on the oil content and yield ofFrontiers in plant science · 2023Article
- Evolution of an intermediate CPhotosynthesis research · 2022Review
- Upregulation of CPlant, cell & environment · 2022Article
- How Light Reactions of Photosynthesis in C4 Plants Are Optimized and Protected under High Light Conditions.International journal of molecular sciences · 2022Review
- New Insights Into the Evolution of CFrontiers in plant science · 2021Article
- Genomic Convergence in the Adaptation to Extreme Environments.Plant communications · 2020Review
- Phosphoglycerate kinase: structural aspects and functions, with special emphasis on the enzyme from Kinetoplastea.Open biology · 2020Review
- Lateral Gene Transfer Acts As an Evolutionary Shortcut to Efficient C4 Biochemistry.Molecular biology and evolution · 2020Article
- Why is C4 photosynthesis so rare in trees?Journal of experimental botany · 2020Article
- Continued Adaptation of C4 Photosynthesis After an Initial Burst of Changes in the Andropogoneae Grasses.Systematic biology · 2020Article
- What Matters for CFrontiers in plant science · 2020Article
- Duplication history and molecular evolution of the rbcS multigene family in angiosperms.Journal of experimental botany · 2019Article
- Transition from CJournal of plant research · 2019Article
- The Role of Sequence Duplication in Transcriptional Regulation and Genome Evolution.Current genomics · 2019Review
- The genetics of convergent evolution: insights from plant photosynthesis.Nature reviews. Genetics · 2019Review
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5 authors.
Funding
Abstract
The importance of gene duplication for evolutionary diversification has been mainly discussed in terms of genetic redundancy allowing neofunctionalization. In the case of C4 photosynthesis, which evolved via the co-option of multiple enzymes to boost carbon fixation in tropical conditions, the importance of genetic redundancy has not been consistently supported by genomic studies. Here, we test for a different role for gene duplication in the early evolution of C4 photosynthesis, via dosage effects creating rapid step changes in expression levels. Using genome-wide data for accessions of the grass genus Alloteropsis that recently diversified into different photosynthetic types, we estimate gene copy numbers and demonstrate that recurrent duplications in two important families of C4 genes coincided with increases in transcript abundance along the phylogeny, in some cases via a pure dosage effect. While increased gene copy number during the initial emergence of C4 photosynthesis probably offered a rapid route to enhanced expression, we also find losses of duplicates following the acquisition of genes encoding better-suited isoforms. The dosage effect of gene duplication might therefore act as a transient process during the evolution of a C4 biochemistry, rendered obsolete by the fixation of regulatory mutations increasing expression levels.
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