Abstract
ABSTRACT Over the past decade, recurrent epidemics of cucumber mosaic virus (CMV) have damaged Espelette pepper crops, a product from the French Basque Country with a Protected Designation of Origin (PDO). Of the three main CMV phylogenetic groups, isolates from Subgroup IB seem to be responsible for these epidemics, while Group II is only sporadically present and Subgroup IA is completely absent, although common elsewhere in France. This study quantifies the impact of three CMV isolates belonging to (Sub)groups IA, IB, and II on the production and quality of Espelette pepper ( Capsicum annuum ‘Gorria’). The CMV‐susceptible inbred line Yolo Wonder was also included as a reference. First, we monitored fruit production dynamics (number and weight) and found that infection by the IA isolate significantly reduced total yield in both cultivars, while infections by the IB and II isolates had milder or nonsignificant effects. Secondly, we assessed the marketability of Gorria fruits under the PDO label by monitoring defects in size, shape and colour. Infected plants produced significantly shorter, more misshapen and discoloured fruits, especially with infection by isolate IA. Finally, we evaluated the organoleptic properties of infected Gorria fruits thanks to a jury trained in PDO quality standards. Peppers infected with the IA isolate were significantly more likely to be rejected compared to healthy controls. Our results underline that CMV infection degrades both pepper yield and quality, with severity depending on pepper cultivar and CMV isolate. In Espelette, managing current epidemics and preventing the introduction of IA isolates is thus crucial.
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Claims 7
Claim · model-written summary
The IA isolate significantly reduced total yield in Gorria pepper.
- Taxon
- Capsicum annuum
Capsicum annuume1 - Material
- Gorriae1
- Treatment
- infection by the IA isolatee0
- Interactor
- CMV
cucumber mosaic cucumoviruse2pathogen
- Outcome
- total yielde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“infection by the IA isolate significantly reduced total yield in both cultivars, while infections by the IB and II isolates had milder or nonsignificant effects.”
e1“Espelette pepper ( Capsicum annuum ‘Gorria’)”
e2“three CMV isolates belonging to (Sub)groups IA, IB, and II”
Claim · model-written summary
The IA isolate significantly reduced total yield in Yolo Wonder pepper.
- Taxon
- Peppert0
- Material
- Yolo Wondere1
- Treatment
- infection by the IA isolatee0
- Interactor
- CMV
cucumber mosaic cucumoviruse1pathogen
- Outcome
- total yielde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“infection by the IA isolate significantly reduced total yield in both cultivars, while infections by the IB and II isolates had milder or nonsignificant effects.”
e1“The CMV‐susceptible inbred line Yolo Wonder was also included as a reference.”
t0“Pepper”
Claim · model-written summary
IB infection had milder or nonsignificant yield effects than IA infection.
- Taxon
- Peppert0
- Treatment
- IBe0
- Interactor
- CMV
cucumber mosaic cucumoviruse1pathogen
- Outcome
- total yielde0
- Qualifier
- milder or nonsignificant effectse0
- Comparator
- IA isolatee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“infection by the IA isolate significantly reduced total yield in both cultivars, while infections by the IB and II isolates had milder or nonsignificant effects.”
e1“three CMV isolates belonging to (Sub)groups IA, IB, and II”
t0“Pepper”
Claim · model-written summary
II infection had milder or nonsignificant yield effects than IA infection.
- Taxon
- Peppert0
- Treatment
- IIe0
- Interactor
- CMV
cucumber mosaic cucumoviruse1pathogen
- Outcome
- total yielde0
- Qualifier
- milder or nonsignificant effectse0
- Comparator
- IA isolatee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“infection by the IA isolate significantly reduced total yield in both cultivars, while infections by the IB and II isolates had milder or nonsignificant effects.”
e1“three CMV isolates belonging to (Sub)groups IA, IB, and II”
t0“Pepper”
Claim · model-written summary
Infected Gorria plants produced significantly shorter, more misshapen and discolored fruits, especially with IA.
- Taxon
- Peppert0
- Material
- Gorriae1
- Treatment
- Infectede0
- Interactor
- CMV
cucumber mosaic cucumoviruse2pathogen
- Outcome
- shorter, more misshapen and discoloured fruitse0
- Qualifier
- especially with infection by isolate IAe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Infected plants produced significantly shorter, more misshapen and discoloured fruits, especially with infection by isolate IA.”
e1“marketability of Gorria fruits”
e2“three CMV isolates belonging to (Sub)groups IA, IB, and II”
t0“Pepper”
Claim · model-written summary
IA-infected Gorria peppers were significantly more likely to be rejected than healthy controls.
- Material
- Gorriae1
- Treatment
- infected with the IA isolatee0
- Interactor
- CMV
cucumber mosaic cucumoviruse2pathogen
- Outcome
- rejectede0
- Direction
- more likelye0
- Comparator
- healthy controlse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Peppers infected with the IA isolate were significantly more likely to be rejected compared to healthy controls.”
e1“organoleptic properties of infected Gorria fruits”
e2“three CMV isolates belonging to (Sub)groups IA, IB, and II”
Claim · model-written summary
Managing current epidemics and preventing IA introduction is crucial in Espelette.
Verbatim
e0“In Espelette, managing current epidemics and preventing the introduction of IA isolates is thus crucial.”
t0“Pepper”
The same questions in other papers
infection · cucumber mosaic cucumovirus · Capsicum annuum (sweet pepper)Results agree
1 paper in the same direction as this paper
- negative
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.