Evidence map›Paper›PMID 10468594›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America1999

The complete chloroplast DNA sequence of the green alga Nephroselmis olivacea: insights into the architecture of ancestral chloroplast genomes.

M Turmel, C Otis, C Lemieux

Open access · greenAbstract readComparative Study
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed
20.7field-weighted citation impact, top 1% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

79 citing papers in PubMed, 253 citations in OpenAlex.

  1. Complete chloroplast genome sequence and phylogenetic analysis ofMitochondrial DNA. Part B, Resources · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. The complete chloroplast genome ofComparative cytogenetics · 2024
    Article
  6. Review
  7. Comparison ofLife (Basel, Switzerland) · 2022
    Article
  8. A gene-rich and compact chloroplast genome of the green algaMitochondrial DNA. Part B, Resources · 2021
    Article
  9. Next-Generation Genome Sequencing ofPlants (Basel, Switzerland) · 2019
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Evolutionary Dynamics of Cryptophyte Plastid Genomes.Genome biology and evolution · 2017
    Article
  15. Article
  16. Does Cell Size Impact Chloroplast Genome Size?Frontiers in plant science · 2017
    Article
  17. Article
  18. Article
  19. Article
  20. Article

19 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

M TurmelCanadian Institute for Advanced Research, Program in Evolutionary Biology and Département de Biochimie, Université Laval, Québec, QC, G1K 7P4, Canada. monique.turmel@rsvs.ulaval.ca
C Otis
C Lemieux
Université Laval · CACanadian Institute for Advanced Research · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Green plants seem to form two sister lineages: Chlorophyta, comprising the green algal classes Prasinophyceae, Ulvophyceae, Trebouxiophyceae, and Chlorophyceae, and Streptophyta, comprising the Charophyceae and land plants. We have determined the complete chloroplast DNA (cpDNA) sequence (200,799 bp) of Nephroselmis olivacea, a member of the class (Prasinophyceae) thought to include descendants of the earliest-diverging green algae. The 127 genes identified in this genome represent the largest gene repertoire among the green algal and land plant cpDNAs completely sequenced to date. Of the Nephroselmis genes, 2 (ycf81 and ftsI, a gene involved in peptidoglycan synthesis) have not been identified in any previously investigated cpDNA; 5 genes [ftsW, rnE, ycf62, rnpB, and trnS(cga)] have been found only in cpDNAs of nongreen algae; and 10 others (ndh genes) have been described only in land plant cpDNAs. Nephroselmis and land plant cpDNAs share the same quadripartite structure-which is characterized by the presence of a large rRNA-encoding inverted repeat and two unequal single-copy regions-and very similar sets of genes in corresponding genomic regions. Given that our phylogenetic analyses place Nephroselmis within the Chlorophyta, these structural characteristics were most likely present in the cpDNA of the common ancestor of chlorophytes and streptophytes. Comparative analyses of chloroplast genomes indicate that the typical quadripartite architecture and gene-partitioning pattern of land plant cpDNAs are ancient features that may have been derived from the genome of the cyanobacterial progenitor of chloroplasts. Our phylogenetic data also offer insight into the chlorophyte ancestor of euglenophyte chloroplasts.

Indexed as

Evolution, MolecularGenome, PlantPhylogenyChlorophytaChloroplastsChromosome MappingDNA, PlantGenes, PlantGenotypeMolecular Sequence DataPeptidoglycanDNA, PlantPeptidoglycan

Identifiers

PMID10468594
PMCPMC17874
OpenAlexW2080419472

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.