ArticleGenome biology and evolution2019
Plastome Reduction in the Only Parasitic Gymnosperm Parasitaxus Is Due to Losses of Photosynthesis but Not Housekeeping Genes and Apparently Involves the Secondary Gain of a Large Inverted Repeat.
Article in Genome biology and evolution, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 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
24 citing papers in PubMed, 44 citations in OpenAlex.
- Petrodesmum, a new genus of the legume tribe Desmodieae from Laos.BMC plant biology · 2026Article
- Repeated loss of plastid NDH during evolution of land plants.Annals of botany · 2026Review
- Article
- PhytoKeys · 2025Article
- Plastid phylogenomics reveals evolutionary relationships in the mycoheterotrophic orchid genusFrontiers in plant science · 2024Article
- Characterizing conflict and congruence of molecular evolution across organellar genome sequences for phylogenetics in land plants.Frontiers in plant science · 2023Article
- Plastid phylogenomics uncovers multiple species in Medicago truncatula (Fabaceae) germplasm accessions.Scientific reports · 2022Article
- Application of chloroplast genome in the identification of Traditional Chinese Medicine Viola philippica.BMC genomics · 2022Article
- Structural Plastome Evolution in Holoparasitic Hydnoraceae with Special Focus on Inverted and Direct Repeats.Genome biology and evolution · 2022Article
- The Plastome Sequences ofInternational journal of molecular sciences · 2022Article
- Comparative and Phylogenetic Analysis of Complete Plastomes among Aristidoideae Species (Poaceae).Biology · 2022Article
- Comparative Analyses of 3,654 Plastid Genomes Unravel Insights Into Evolutionary Dynamics and Phylogenetic Discordance of Green Plants.Frontiers in plant science · 2022Article
- The dynamic history of gymnosperm plastomes: Insights from structural characterization, comparative analysis, phylogenomics, and time divergence.The plant genome · 2021Article
- Genomic reconfiguration in parasitic plants involves considerable gene losses alongside global genome size inflation and gene births.Plant physiology · 2021Article
- Characterization of the complete plastome ofMitochondrial DNA. Part B, Resources · 2021Article
- Characterization and phylogenetic analysis of the complete plastome ofMitochondrial DNA. Part B, Resources · 2021Article
- Characterization of the complete plastome ofMitochondrial DNA. Part B, Resources · 2021Article
- The complete chloroplast genome ofMitochondrial DNA. Part B, Resources · 2021Article
- Comparative and Phylogenetic Analysis of Complete Chloroplast Genomes in Eragrostideae (Chloridoideae, Poaceae).Plants (Basel, Switzerland) · 2021Article
- Comparative Plastomes and Phylogenetic Analysis ofFrontiers in plant science · 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 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plastid genomes (plastomes) of parasitic plants undergo dramatic reductions as the need for photosynthesis relaxes. Here, we report the plastome of the only known heterotrophic gymnosperm Parasitaxus usta (Podocarpaceae). With 68 unique genes, of which 33 encode proteins, 31 tRNAs, and four rRNAs in a plastome of 85.3-kb length, Parasitaxus has both the smallest and the functionally least capable plastid genome of gymnosperms. Although the heterotroph retains chlorophyll, all genes for photosynthesis are physically or functionally lost, making photosynthetic energy gain impossible. The pseudogenization of the three plastome-encoded light-independent chlorophyll biosynthesis genes chlB, chlL, and chlN implies that Parasitaxus relies on either only the light-dependent chlorophyll biosynthesis pathway or another regulation system. Nesting within a group of gymnosperms known for the absence of the large inverted repeat regions (IRs), another unusual feature of the Parasitaxus plastome is the existence of a 9,256-bp long IR. Its short length and a gene composition that completely differs from those of IR-containing gymnosperms together suggest a regain of this critical, plastome structure-stabilizing feature. In sum, our findings highlight the particular path of lifestyle-associated reductive plastome evolution, where structural features might provide additional cues of a continued selection for plastome maintenance.
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.