Evidence map›Paper›PMID 31401729›Full record

ArticlePlant molecular biology2019

Application of Cas12a and nCas9-activation-induced cytidine deaminase for genome editing and as a non-sexual strategy to generate homozygous/multiplex edited plants in the allotetraploid genome of tobacco.

Chen-Tran Hsu, Yu-Jung Cheng, Yu-Hsua Yuan, Wei-Fon Hung, Qiao-Wei Cheng, Fu-Hui Wu, Lan-Ying Lee, Stanton B Gelvin, Choun-Sea Lin

Abstract read
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In one paragraph

Article in Plant molecular biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

18 citing papers in PubMed, 32 citations in OpenAlex.

  1. Review
  2. Review
  3. Isolation and Transfection of Nicotiana benthamiana Mesophyll Protoplasts.Methods in molecular biology (Clifton, N.J.) · 2025
    Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Article
  10. Target-AID-Mediated Multiplex Base Editing in Porcine Fibroblasts.Animals : an open access journal from MDPI · 2021
    Article
  11. Article
  12. Review
  13. Review
  14. Review
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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

9 authors at 2 institutions in 2 countries.

Chen-Tran HsuAgricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan.
Yu-Jung ChengAgricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan.
Yu-Hsua YuanAgricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan.
Wei-Fon HungAgricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan.
Qiao-Wei ChengAgricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan.
Fu-Hui WuAgricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan.
Lan-Ying LeeDepartment of Biological Sciences, Purdue University, West Lafayette, IN, 47907-1392, USA.
Stanton B GelvinDepartment of Biological Sciences, Purdue University, West Lafayette, IN, 47907-1392, USA.
Choun-Sea LinAgricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan. cslin99@gate.sinica.edu.tw.ORCID http://orcid.org/0000-0001-9566-2952
Agricultural Biotechnology Research Center, Academia Sinica · TWPurdue University West Lafayette · US

Funding

Innovative Translational Agricultural Research Administrative Office AS-KPQ-107-ITAR-10Ministry of Science and Technology, Taiwan 105-2313-B-001 -007 -MY3
6 · The paper itself

Abstract

key messageProtoplasts can be used for genome editing using several different CRISPR systems, either separately or simultaneously, and that the resulting mutations can be recovered in regenerated non-chimaeric plants. Protoplast transfection and regeneration systems are useful platforms for CRISPR/Cas mutagenesis and genome editing. In this study, we demonstrate the use of Cpf1 (Cas12a) and nCas9-activation-induced cytidine deaminase (nCas9-Target-AID) systems to mutagenize Nicotiana tabacum protoplasts and to regenerate plants harboring the resulting mutations. We analyzed 20 progeny plants of Cas12a-mediated phytoene desaturase (PDS) mutagenized regenerants, as well as regenerants from wild-type protoplasts, and confirmed that their genotypes were inherited in a Mendelian manner. We used a Cas9 nickase (nCas9)-cytidine deaminase to conduct C to T editing of the Ethylene receptor 1 (ETR1) gene in tobacco protoplasts and obtained edited regenerates. It is difficult to obtain homozygous edits of polyploid genomes when the editing efficiency is low. A second round of mutagenesis of partially edited regenerants (a two-step transfection protocol) allowed us to derive ETR1 fully edited regenerants without the need for sexual reproduction. We applied three different Cas systems (SaCas9, Cas12a, and nCas9-Traget AID) using either a one-step or a two-step transfection platform to obtain triply mutated and/or edited tobacco regenerants. Our results indicate that these three Cas systems can function simultaneously within a single cell.

Indexed as

Bacterial ProteinsCRISPR-Cas SystemsFrancisellaGene EditingHomozygoteNicotianaPlant ProteinsTetraploidyBacterial ProteinsPlant ProteinsCas12aChimeric plantsCRISPR/CasCytidine deaminasePolyploid genome editing

Identifiers

PMID31401729
OpenAlexW2968865931

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.