Paper · 2018 · Plant Signaling & Behavior

Engineering resistance against Tomato yellow leaf curl virus via the CRISPR/Cas9 system in tomato

Manal Tashkandi; Zahir Ali; Fatimah Aljedaani; et al.

4
claims
6
verbatim quotes
238
citations
2
research areas
✓
Open access

Abstract

CRISPR/Cas systems confer molecular immunity against phages and conjugative plasmids in prokaryotes. Recently, CRISPR/Cas9 systems have been used to confer interference against eukaryotic viruses. Here, we engineered Nicotiana benthamiana and tomato (Solanum lycopersicum) plants with the CRISPR/Cas9 system to confer immunity against the Tomato yellow leaf curl virus (TYLCV). Targeting the TYLCV genome with Cas9-single guide RNA at the sequences encoding the coat protein (CP) or replicase (Rep) resulted in efficient virus interference, as evidenced by low accumulation of the TYLCV DNA genome in the transgenic plants. The CRISPR/Cas9-based immunity remained active across multiple generations in the N. benthamiana and tomato plants. Together, our results confirmed the efficiency of the CRISPR/Cas9 system for stable engineering of TYLCV resistance in N. benthamiana and tomato, and opens the possibilities of engineering virus resistance against single and multiple infectious viruses in other crops.

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Claims 4

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Engineered plants had low TYLCV DNA accumulation following genome targeting.

Taxon
Nicotiana benthamianaNicotiana benthamianae1
Treatment
Targeting the TYLCV genome with Cas9-single guide RNAe0
Interactor
TYLCVTomato yellow leaf curl viruse0pathogen
Outcome
TYLCV DNA genomee0
Direction
lowe0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Nicotiana benthamiana
Nicotiana benthamiana · TaxonCharles Andres · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Targeting the TYLCV genome with Cas9-single guide RNA at the sequences encoding the coat protein (CP) or replicase (Rep) resulted in efficient virus interference, as evidenced by low accumulation of the TYLCV DNA genome in the transgenic plants.”

✓ located verbatim in the source · abstract, characters 378–623 · show in text ↑
e1

“Nicotiana benthamiana and tomato (Solanum lycopersicum) plants”

✓ located verbatim in the source · abstract, characters 217–279 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Engineered tomato plants had low TYLCV DNA accumulation following genome targeting.

Treatment
Targeting the TYLCV genome with Cas9-single guide RNAe0
Interactor
TYLCVTomato yellow leaf curl viruse0pathogen
Outcome
TYLCV DNA genomee0
Direction
lowe0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Targeting the TYLCV genome with Cas9-single guide RNA at the sequences encoding the coat protein (CP) or replicase (Rep) resulted in efficient virus interference, as evidenced by low accumulation of the TYLCV DNA genome in the transgenic plants.”

✓ located verbatim in the source · abstract, characters 378–623 · show in text ↑
e1

“Nicotiana benthamiana and tomato (Solanum lycopersicum) plants”

✓ located verbatim in the source · abstract, characters 217–279 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

CRISPR/Cas9 immunity persisted across multiple generations of Nicotiana benthamiana.

Taxon
N. benthamianaNicotiana benthamianae0
Outcome
CRISPR/Cas9-based immunitye0
Qualifier
across multiple generationse0

Not reportedInteractor

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Nicotiana benthamiana
Nicotiana benthamiana · TaxonCharles Andres · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The CRISPR/Cas9-based immunity remained active across multiple generations in the N. benthamiana and tomato plants.”

✓ located verbatim in the source · abstract, characters 624–739 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

CRISPR/Cas9 immunity persisted across multiple generations of tomato.

Outcome
CRISPR/Cas9-based immunitye0
Qualifier
across multiple generationse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The CRISPR/Cas9-based immunity remained active across multiple generations in the N. benthamiana and tomato plants.”

✓ located verbatim in the source · abstract, characters 624–739 · show in text ↑

Solanum lycopersicum · Tomato yellow leaf curl virus · Nicotiana benthamianaPositive and negative results

7 papers: 4 positive, 3 negative or no effect

3 papers in the same direction as this paper · 3 in the opposite direction

  1. positive
  2. negative
  3. negative

3 papers more in this group

See all 7 papers →

loss of function · Tomato yellow leaf curl virus · Nicotiana benthamianaPositive and negative results

6 papers: 3 positive, 3 negative or no effect

2 papers in the same direction as this paper · 3 in the opposite direction

  1. positive
  2. negative
  3. negative

2 papers more in this group

See all 6 papers →

loss of function · Tomato yellow leaf curl virus · Solanum lycopersicum (tomato)Positive and negative results

11 papers: 4 positive, 7 negative or no effect

3 papers in the same direction as this paper · 7 in the opposite direction

  1. negative
  2. negative
  3. negative

7 papers more in this group

See all 11 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.