Evidence map›Paper›PMID 25531445›Full record

ArticleScientific reports2014

Dual sgRNA-directed gene knockout using CRISPR/Cas9 technology in Caenorhabditis elegans.

Xiangyang Chen, Fei Xu, Chengming Zhu, Jiaojiao Ji, Xufei Zhou, Xuezhu Feng, Shouhong Guang

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 91 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
91citing papers in PubMed, 1 pooled it
4.8field-weighted citation impact, top 4% 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

91 citing papers in PubMed, 1 synthesis or guideline pooled it, 163 citations in OpenAlex.

  1. Pooled it
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  14. A Manual for Genome and Transcriptome Engineering.IEEE reviews in biomedical engineering · 2025
    Review
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31 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

7 authors at 1 institution in 1 country.

Xiangyang ChenSchool of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, P.R. China.
Fei XuSchool of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, P.R. China.
Chengming ZhuSchool of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, P.R. China.
Jiaojiao JiSchool of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, P.R. China.
Xufei ZhouSchool of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, P.R. China.
Xuezhu FengSchool of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, P.R. China.
Shouhong GuangSchool of Life Sciences, University of Science and Technology of China, Hefei, Anhui 230027, P.R. China.
University of Science and Technology of China · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The CRISPR RNA-guided Cas9 nuclease gene-targeting system has been successfully used for genome editing in a variety of organisms. Here, we report the use of dual sgRNA-guided Cas9 nuclease to generate knockout mutants of protein coding genes, noncoding genes, and repetitive sequences in C. elegans. Co-injection of C. elegans with dual sgRNAs results in the removal of the interval between two sgRNAs and the loss-of-function phenotype of targeted genes. We sought to determine how large an interval can be eliminated and found that at least a 24 kb chromosome segment can be deleted using this dual sgRNA/Cas9 strategy. The deletion of large chromosome segments facilitates mutant screening by PCR and agarose electrophoresis. Thus, the use of the CRISPR/Cas9 system in combination with dual sgRNAs provides a powerful platform with which to easily generate gene knockout mutants in C. elegans. Our data also suggest that encoding multiple sgRNA sequences into a single CRISPR array to simultaneously edit several sites within the genome may cause the off-target deletion of chromosome sequences.

Indexed as

Genes, HelminthAnimalsCaenorhabditis elegansChromosomesDeoxyribonucleasesGene Knockdown TechniquesDeoxyribonucleases

Identifiers

PMID25531445
PMCPMC4273605
OpenAlexW2052532553

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.