Evidence map›Paper›PMID 29172250›Full record

ArticleThe Plant journal : for cell and molecular biology2018

High-throughput sequencing of the chloroplast and mitochondrion of Chlamydomonas reinhardtii to generate improved de novo assemblies, analyze expression patterns and transcript speciation, and evaluate diversity among laboratory strains and wild isolates.

Sean D Gallaher, Sorel T Fitz-Gibbon, Daniela Strenkert, Samuel O Purvine, Matteo Pellegrini, Sabeeha S Merchant

Open access · bronzeAbstract read
In one paragraph

Article in The Plant journal : for cell and molecular biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

62 citing papers in PubMed, 135 citations in OpenAlex.

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  12. Developing a media formulation to sustainFrontiers in bioengineering and biotechnology · 2025
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  15. Assembly and Repair of Photosystem II inPlants (Basel, Switzerland) · 2024
    Review
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  18. Pumping iron: A multi-omics analysis of two extremophilic algae reveals iron economy management.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  19. Review
  20. Article

2 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

6 authors at 2 institutions in 1 country.

Sean D GallaherDepartment of Chemistry and Biochemistry, University of California, Los Angeles, CA, 90095, USA.ORCID 0000-0002-9773-6051
Sorel T Fitz-GibbonDepartment of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, CA, 90095, USA.ORCID 0000-0001-7090-5719
Daniela StrenkertDepartment of Chemistry and Biochemistry, University of California, Los Angeles, CA, 90095, USA.ORCID 0000-0002-3420-1332
Samuel O PurvineEnvironmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, 99352, USA.ORCID 0000-0002-2257-2400
Matteo PellegriniDepartment of Molecular, Cell, and Developmental Biology, University of California, Los Angeles, CA, 90095, USA.ORCID 0000-0001-9355-9564
Sabeeha S MerchantDepartment of Chemistry and Biochemistry, University of California, Los Angeles, CA, 90095, USA.ORCID 0000-0002-2594-509X
University of California, Los Angeles · USPacific Northwest National Laboratory · US

Funding

UCLA SPORE in Brain CancerP50CA211015 · NCI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI David A. Nathanson · 2017 to 2026
$25.2M
Transcriptional profiling and annotation of the Chlamydomonas genomeR24GM092473 · NIGMS · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI MERCHANT, SABEEHA · 2011 to 2014
$1.2M
NCI NIH HHS P50 CA211015NIGMS NIH HHS R24 GM092473
6 · The paper itself

Abstract

Chlamydomonas reinhardtii is a unicellular chlorophyte alga that is widely studied as a reference organism for understanding photosynthesis, sensory and motile cilia, and for development of an algal-based platform for producing biofuels and bio-products. Its highly repetitive, ~205-kbp circular chloroplast genome and ~15.8-kbp linear mitochondrial genome were sequenced prior to the advent of high-throughput sequencing technologies. Here, high coverage shotgun sequencing was used to assemble both organellar genomes de novo. These new genomes correct dozens of errors in the prior genome sequences and annotations. Genome sequencing coverage indicates that each cell contains on average 83 copies of the chloroplast genome and 130 copies of the mitochondrial genome. Using protocols and analyses optimized for organellar transcripts, RNA-Seq was used to quantify their relative abundances across 12 different growth conditions. Forty-six percent of total cellular mRNA is attributable to high expression from a few dozen chloroplast genes. RNA-Seq data were used to guide gene annotation, to demonstrate polycistronic gene expression, and to quantify splicing of psaA and psbA introns. In contrast to a conclusion from a recent study, we found that chloroplast transcripts are not edited. Unexpectedly, cytosine-rich polynucleotide tails were observed at the 3'-end of all mitochondrial transcripts. A comparative genomics analysis of eight laboratory strains and 11 wild isolates of C. reinhardtii identified 2658 variants in the organellar genomes, which is 1/10th as much genetic diversity as is found in the nucleus.

Indexed as

Genome, ChloroplastChlamydomonas reinhardtiiDNA, MitochondrialGene EditingGene Expression Regulation, PlantGenome, PlantGenomicsHigh-Throughput Nucleotide SequencingMolecular Sequence AnnotationOrganellesRNA SplicingSequence Analysis, RNADNA, MitochondrialftsHorganellesplastidRNA-SeqrpoC1rps2transcript editingtrans-splicingWendy transposonycf1

Identifiers

PMID29172250
PMCPMC5775909
OpenAlexW2770149057

What OpenQuestion holds

Textmetadata
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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.