ArticleBMC plant biology2021
Comparative genomic analysis of Polypodiaceae chloroplasts reveals fine structural features and dynamic insertion sequences.
Article in BMC plant biology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 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
19 citing papers in PubMed, 38 citations in OpenAlex.
- Conservation Status, Plastome Diversity, and Evolutionary Diversification of Three ArabianBiology · 2026Article
- Comparative analysis of chloroplast genomes reveals molecular evolution and phylogenetic relationships in Styrax (Styracaceae).BMC plant biology · 2026Article
- Comparative analysis of complete chloroplast genomes reveals the phylogenetic relationships of Lygodium Sw. (Lygodiaceae) species in China.BMC genomics · 2026Article
- Article
- Article
- The First Complete Chloroplast Genome Sequence of theCurrent issues in molecular biology · 2025Article
- Comparative Analysis of Chloroplast Genome Between Widely Distributed and Locally DistributedInternational journal of molecular sciences · 2025Article
- Comparative plastome analyses and evolutionary relationships ofFrontiers in plant science · 2025Article
- The size diversity of the Pteridaceae family chloroplast genome is caused by overlong intergenic spacers.BMC genomics · 2024Article
- Article
- Microsatellite Content in 397 Nuclear Exons and Their Flanking Regions in the Fern Family Ophioglossaceae.Plants (Basel, Switzerland) · 2024Article
- Comparative analysis of plastid genomes reveals rearrangements, repetitive sequence features, and phylogeny in the Annonaceae.Frontiers in plant science · 2024Article
- A comparative plastomic analysis ofAoB PLANTS · 2023Article
- Insights into the phylogeny and chloroplast genome evolution of Eriocaulon (Eriocaulaceae).BMC plant biology · 2023Article
- The complete chloroplast genome and phylogenetic analysis ofMitochondrial DNA. Part B, Resources · 2023Article
- A Large Intergenic Spacer Leads to the Increase in Genome Size and Sequential Gene Movement around IR/SC Boundaries in the Chloroplast Genome ofInternational journal of molecular sciences · 2022Article
- Plastome characteristics and species identification of Chinese medicinal wintergreens (Plant diversity · 2022Article
- Variations in genetic diversity in cultivatedFrontiers in plant science · 2022Article
- Phylogenetic significance of the characteristics of simple sequence repeats at the genus level based on the complete chloroplast genome sequences of Cyatheaceae.Ecology and evolution · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundComparative chloroplast genomics could shed light on the major evolutionary events that established plastomic diversity among closely related species. The Polypodiaceae family is one of the most species-rich and underexplored groups of extant ferns. It is generally recognized that the plastomes of Polypodiaceae are highly notable in terms of their organizational stability. Hence, no research has yet been conducted on genomic structural variation in the Polypodiaceae.
resultsThe complete plastome sequences of Neolepisorus fortunei, Neolepisorus ovatus, and Phymatosorus cuspidatus were determined based on next-generation sequencing. Together with published plastomes, a comparative analysis of the fine structure of Polypodiaceae plastomes was carried out. The results indicated that the plastomes of Polypodiaceae are not as conservative as previously assumed. The size of the plastomes varies greatly in the Polypodiaceae, and the large insertion fragments present in the genome could be the main factor affecting the genome length. The plastome of Selliguea yakushimensis exhibits prominent features including not only a large-scale IR expansion exceeding several kb but also a unique inversion. Furthermore, gene contents, SSRs, dispersed repeats, and mutational hotspot regions were identified in the plastomes of the Polypodiaceae. Although dispersed repeats are not abundant in the plastomes of Polypodiaceae, we found that the large insertions that occur in different species are mobile and are always adjacent to repeated hotspot regions.
conclusionsOur results reveal that the plastomes of Polypodiaceae are dynamic molecules, rather than constituting static genomes as previously thought. The dispersed repeats flanking insertion sequences contribute to the repair mechanism induced by double-strand breaks and are probably a major driver of structural evolution in the plastomes of Polypodiaceae.
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.