ArticleProceedings of the National Academy of Sciences of the United States of America2022
A generalist-specialist trade-off between switchgrass cytotypes impacts climate adaptation and geographic range.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed, 23 citations in OpenAlex.
- Local adaptation of both plant and pathogen: an arms-race compromise in switchgrass rust.The New phytologist · 2025Article
- Forecasting Northward Range Expansion of Switchgrass in China via Multi-Scenario MaxEnt Simulations.Biology · 2025Article
- Polyploidy drives changes in tissue allocation modifying whole-plant water relations.Plant physiology · 2025Article
- Potential plant extinctions with the loss of the Pleistocene mammoth steppe.Nature communications · 2025Article
- Genomic prediction of regional-scale performance in switchgrass (Panicum virgatum) by accounting for genotype-by-environment variation and yield surrogate traits.G3 (Bethesda, Md.) · 2024Article
- Genomic factors shape carbon and nitrogen metabolic niche breadth across Saccharomycotina yeasts.Science (New York, N.Y.) · 2024Article
- Genomic and ecological factors shaping specialism and generalism across an entire subphylum.bioRxiv : the preprint server for biology · 2023Article
- Genome-wide identification of MBD gene family members in Eleutherococcus senticosus with their expression motifs under drought stress and DNA demethylation.BMC genomics · 2023Article
- Global gradients in the distribution of animal polyploids.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- A generalist-specialist trade-off between switchgrass cytotypes impacts climate adaptation and geographic range.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Variant calling in polyploids for population and quantitative genetics.Applications in plant sciencesArticle
Corrections and comments
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Authors and funding
26 authors at 10 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Polyploidy results from whole-genome duplication and is a unique form of heritable variation with pronounced evolutionary implications. Different ploidy levels, or cytotypes, can exist within a single species, and such systems provide an opportunity to assess how ploidy variation alters phenotypic novelty, adaptability, and fitness, which can, in turn, drive the development of unique ecological niches that promote the coexistence of multiple cytotypes. Switchgrass, Panicum virgatum, is a widespread, perennial C4 grass in North America with multiple naturally occurring cytotypes, primarily tetraploids (4×) and octoploids (8×). Using a combination of genomic, quantitative genetic, landscape, and niche modeling approaches, we detect divergent levels of genetic admixture, evidence of niche differentiation, and differential environmental sensitivity between switchgrass cytotypes. Taken together, these findings support a generalist (8×)–specialist (4×) trade-off. Our results indicate that the 8× represent a unique combination of genetic variation that has allowed the expansion of switchgrass’ ecological niche and thus putatively represents a valuable breeding resource.
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