ArticleThe Plant cell2015
Horsetails Are Ancient Polyploids: Evidence from Equisetum giganteum.
Article in The Plant cell, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
34 citing papers in PubMed, 78 citations in OpenAlex.
- Divergent trajectories of genome architecture and chromosome evolution in ferns and angiosperms.The New phytologist · 2026Article
- Comparative transcriptomics in ferns reveals key innovations and divergent evolution of the secondary cell walls.Nature plants · 2025Article
- Whole Genome Duplication Events Likely Contributed to the Aquatic Adaptive Evolution of Parkerioideae.Plants (Basel, Switzerland) · 2024Article
- Chloroplast genome structure analysis ofFrontiers in plant science · 2024Article
- Revisiting ancient polyploidy in leptosporangiate ferns.The New phytologist · 2023Article
- An improved assembly of the "Cascade" hop (Horticulture research · 2023Article
- Combined genomic and transcriptomic analysis reveals the contribution of tandem duplication genes to low-temperature adaptation in perennial ryegrass.Frontiers in plant science · 2023Article
- Lycophyte transcriptomes reveal two whole-genome duplications in Lycopodiaceae: Insights into the polyploidization ofPlant diversity · 2022Article
- Article
- OrchidBase 4.0: a database for orchid genomics and molecular biology.BMC plant biology · 2021Article
- Charting the genomic landscape of seed-free plants.Nature plants · 2021Review
- Biogeography and genome size evolution of the oldest extant vascular plant genus, Equisetum (Equisetaceae).Annals of botany · 2021Article
- Paleo-polyploidization in Lycophytes.Genomics, proteomics & bioinformatics · 2020Article
- The C-Fern (Ceratopteris richardii) genome: insights into plant genome evolution with the first partial homosporous fern genome assembly.Scientific reports · 2019Article
- Phylotranscriptomic Analyses Reveal Asymmetrical Gene Duplication Dynamics and Signatures of Ancient Polyploidy in Mints.Genome biology and evolution · 2019Article
- Origin of horsetails and the role of whole-genome duplication in plant macroevolution.Proceedings. Biological sciences · 2019Article
- Genome Sequencing ofG3 (Bethesda, Md.) · 2019Article
- Evolutionary history and structure of nuclear matrix constituent proteins, the plant analogues of lamins.Journal of experimental botany · 2019Article
- Dating Whole Genome Duplication inInternational journal of molecular sciences · 2019Article
- Article
Corrections and comments
- Commented on by
Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Horsetails represent an enigmatic clade within the land plants. Despite consisting only of one genus (Equisetum) that contains 15 species, they are thought to represent the oldest extant genus within the vascular plants dating back possibly as far as the Triassic. Horsetails have retained several ancient features and are also characterized by a particularly high chromosome count (n = 108). Whole-genome duplications (WGDs) have been uncovered in many angiosperm clades and have been associated with the success of angiosperms, both in terms of species richness and biomass dominance, but remain understudied in nonangiosperm clades. Here, we report unambiguous evidence of an ancient WGD in the fern lineage, based on sequencing and de novo assembly of an expressed gene catalog (transcriptome) from the giant horsetail (Equisetum giganteum). We demonstrate that horsetails underwent an independent paleopolyploidy during the Late Cretaceous prior to the diversification of the genus but did not experience any recent polyploidizations that could account for their high chromosome number. We also discuss the specific retention of genes following the WGD and how this may be linked to their long-term survival.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.