Evidence map›Paper›PMID 36397679›Full record

ArticlePlant communications2023

A gap-free genome assembly of Chlamydomonas reinhardtii and detection of translocations induced by CRISPR-mediated mutagenesis.

Zachary L Payne, Gervette M Penny, Tychele N Turner, Susan K Dutcher

Open access · goldFull text read
In one paragraph

Article in Plant communications, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
3.2field-weighted citation impact, top 7% 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

17 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
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  4. Long and Accurate: How HiFi Sequencing is Transforming Genomics.Genomics, proteomics & bioinformatics · 2025
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  7. Proceedings of the National Academy of Sciences of the United States of America · 2025
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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

4 authors at 1 institution in 1 country.

Zachary L PayneDepartment of Genetics, Washington University School of Medicine, Saint Louis, MO 63110, USA.
Gervette M PennyDepartment of Genetics, Washington University School of Medicine, Saint Louis, MO 63110, USA.
Tychele N TurnerDepartment of Genetics, Washington University School of Medicine, Saint Louis, MO 63110, USA.
Susan K DutcherDepartment of Genetics, Washington University School of Medicine, Saint Louis, MO 63110, USA. Electronic address: dutcher@wustl.edu.
Washington University in St. Louis · US

Funding

REGULATION OF MOTILE CILIA ASSEMBLY IN LUNG DISEASER01HL128370 · NHLBI · WASHINGTON UNIVERSITY · PI Steven Brody, SUSAN K DUTCHER · 2015 to 2026
$6.9M
Genetic Analysis of Centrioles and CiliaR35GM131909 · NIGMS · WASHINGTON UNIVERSITY · PI SUSAN K DUTCHER · 2019 to 2026
$3.0M
Nature and contribution of noncoding, regulatory mutations in neurodevelopmental disordersR00MH117165 · NIMH · WASHINGTON UNIVERSITY · PI TURNER, TYCHELE NAOMI · 2019 to 2021
$743k
NHLBI NIH HHS R01 HL128370NIGMS NIH HHS R35 GM131909NIMH NIH HHS R00 MH117165
6 · The paper itself

Abstract

Genomic assemblies of the unicellular green alga Chlamydomonas reinhardtii have provided important resources for researchers. However, assembly errors, large gaps, and unplaced scaffolds as well as strain-specific variants currently impede many types of analysis. By combining PacBio HiFi and Oxford Nanopore long-read technologies, we generated a de novo genome assembly for strain CC-5816, derived from crosses of strains CC-125 and CC-124. Multiple methods of evaluating genome completeness and base-pair error rate suggest that the final telomere-to-telomere assembly is highly accurate. The CC-5816 assembly enabled previously difficult analyses that include characterization of the 17 centromeres, rDNA arrays on three chromosomes, and 56 insertions of organellar DNA into the nuclear genome. Using Nanopore sequencing, we identified sites of cytosine (CpG) methylation, which are enriched at centromeres. We analyzed CRISPR-Cas9 insertional mutants in the PF23 gene. Two of the three alleles produced progeny that displayed patterns of meiotic inviability that suggested the presence of a chromosomal aberration. Mapping Nanopore reads from pf23-2 and pf23-3 onto the CC-5816 genome showed that these two strains each carry a translocation that was initiated at the PF23 gene locus on chromosome 11 and joined with chromosomes 5 or 3, respectively. The translocations were verified by demonstrating linkage between loci on the two translocated chromosomes in meiotic progeny. The three pf23 alleles display the expected short-cilia phenotype, and immunoblotting showed that pf23-2 lacks the PF23 protein. Our CC-5816 genome assembly will undoubtedly provide an important tool for the Chlamydomonas research community.

Indexed as

Chlamydomonas reinhardtiiHigh-Throughput Nucleotide SequencingMutagenesisalgade novoNanoporePacBioreference genomestructural variation

Identifiers

PMID36397679
PMCPMC10030371
OpenAlexW4309366457

What Socratic holds

Textfull text, public
LicenceCC BY
reference markers read5
measurements read151
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 Socratic graph.