ArticleMolecular biology and evolution2020
Multiple Genetic Trajectories to Extreme Abiotic Stress Adaptation in Arctic Brassicaceae.
Article in Molecular biology and evolution, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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25 citing papers in PubMed, 50 citations in OpenAlex.
- Genomic basis of adaptation to serpentine soil in two Alyssum species shows convergence with Arabidopsis across 20 million years of divergence.Annals of botany · 2026Article
- The genetic foundations of convergent traits.Nature reviews. Genetics · 2026Review
- The abundance of pollen coat small signaling proteins shows limited convergence between independent selfing transitions in Arabidopsis and Capsella.The New phytologist · 2026Article
- Genomic insights into alpine plant adaptation.Plant diversity · 2026Review
- Ecological and Mutation-Order Speciation in Senecio.Molecular ecology · 2025Article
- The interplay between epigenomic and transcriptomic variation during ecotype divergence in stickleback.BMC biology · 2025Article
- What Does It Mean to Be(Come) Arctic? Functional and Genetic Traits of Arctic- and Temperate-Adapted Diatoms.Global change biology · 2025Article
- Convergent evolution in angiosperms adapted to cold climates.Plant communications · 2025Review
- A high-quality genome assembly of the shrubby cinquefoil (Dasiphora fruticosa).Scientific data · 2024Article
- Lessons from Extremophiles: Functional Adaptations and Genomic Innovations across the Eukaryotic Tree of Life.Genome biology and evolution · 2024Article
- Genomics of ecological adaptation in Canary IslandEcology and evolution · 2024Article
- Comparative population genomics reveals convergent and divergent selection in the apricot-peach-plum-mei complex.Horticulture research · 2024Article
- Complementing model species with model clades.The Plant cell · 2024Review
- Evolution of high-molecular-mass hyaluronic acid is associated with subterranean lifestyle.Nature communications · 2023Article
- Convergent molecular evolution of thermogenesis and circadian rhythm in Arctic ruminants.Proceedings. Biological sciences · 2023Article
- Positive and Relaxed Selective Pressures Have Both Strongly Influenced the Evolution of Cryonotothenioid Fishes during Their Radiation in the Freezing Southern Ocean.Genome biology and evolution · 2023Article
- Convergent Genomic Signatures of Cashmere Traits: Evidence for Natural and Artificial Selection.International journal of molecular sciences · 2023Article
- Positive selection and heat-response transcriptomes reveal adaptive features of the Brassicaceae desert model, Anastatica hierochuntica.The New phytologist · 2022Article
- What can cold-induced transcriptomes of Arctic Brassicaceae tell us about the evolution of cold tolerance?Molecular ecology · 2022Article
- Arabis alpina: A perennial model plant for ecological genomics and life-history evolution.Molecular ecology resources · 2022Review
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Extreme environments offer powerful opportunities to study how different organisms have adapted to similar selection pressures at the molecular level. Arctic plants have adapted to some of the coldest and driest biomes on Earth and typically possess suites of similar morphological and physiological adaptations to extremes in light and temperature. Here, we compare patterns of molecular evolution in three Brassicaceae species that have independently colonized the Arctic and present some of the first genetic evidence for plant adaptations to the Arctic environment. By testing for positive selection and identifying convergent substitutions in orthologous gene alignments for a total of 15 Brassicaceae species, we find that positive selection has been acting on different genes, but similar functional pathways in the three Arctic lineages. The positively selected gene sets identified in the three Arctic species showed convergent functional profiles associated with extreme abiotic stress characteristic of the Arctic. However, there was little evidence for independently fixed mutations at the same sites and for positive selection acting on the same genes. The three species appear to have evolved similar suites of adaptations by modifying different components in similar stress response pathways, implying that there could be many genetic trajectories for adaptation to the Arctic environment. By identifying candidate genes and functional pathways potentially involved in Arctic adaptation, our results provide a framework for future studies aimed at testing for the existence of a functional syndrome of Arctic adaptation in the Brassicaceae and perhaps flowering plants in general.
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