Abstract
Persistent plant viruses, by altering phenotypic and physiological traits of their hosts, could modulate the host preference and fitness of hemipteran vectors. A majority of such modulations increase vector preference for virus-infected plants and improve vector fitness, ultimately favouring virus spread. Nevertheless, it remains unclear how these virus-induced modulations on vectors vary temporally, and whether host resistance to the pathogen influences such effects. This study addressed the two questions using a Begomovirus-whitefly-tomato model pathosystem. Tomato yellow leaf curl virus (TYLCV) -susceptible and TYLCV-resistant tomato genotypes were evaluated by whitefly-mediated transmission assays. Quantitative PCR revealed that virus accumulation decreased after an initial spike in all genotypes. TYLCV accumulation was less in resistant than in susceptible genotypes at 3, 6, and 12 weeks post inoculation (WPI). TYLCV acquisition by whiteflies over time from resistant and susceptible genotypes was also consistent with virus accumulation in the host plant. Furthermore, preference assays indicated that non-viruliferous whiteflies preferred virus-infected plants, whereas viruliferous whiteflies preferred non-infected plants. However, this effect was prominent only with the susceptible genotype at 6 WPI. The development of whiteflies on non-infected susceptible and resistant genotypes was not significantly different. However, developmental time was reduced when a susceptible genotype was infected with TYLCV. Together, these results suggest that vector preference and development could be affected by the timing of infection and by host resistance. These effects could play a crucial role in TYLCV epidemics.
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Claims 8
Claim · model-written summary
TYLCV accumulation fell after an initial spike in all tomato genotypes.
- Taxon
- tomato
Solanum lycopersicume1 - Interactor
- TYLCVTomato yellow leaf curl viruse2pathogent0
- Outcome
- virus accumulatione0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“virus accumulation decreased after an initial spike in all genotypes.”
t0“Temporal Effects of a Begomovirus Infection and Host Plant Resistance on the Preference and Development of an Insect Vector, Bemisia tabaci, and Implications for Epidemics”
e1“tomato model pathosystem”
e2“TYLCV accumulation was less in resistant than in susceptible genotypes at 3, 6, and 12 weeks post inoculation (WPI).”
Claim · model-written summary
TYLCV accumulation was lower in resistant than susceptible tomato genotypes at 3, 6 and 12 WPI.
- Taxon
- tomatoSolanum lycopersicume1
- Material
- resistante0
- Interactor
- TYLCVTomato yellow leaf curl viruse0pathogent0
- Outcome
- TYLCV accumulatione0
- Direction
- lesse0
- Qualifier
- 3, 6, and 12 weeks post inoculation (WPI)e0
- Comparator
- susceptible genotypese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“TYLCV accumulation was less in resistant than in susceptible genotypes at 3, 6, and 12 weeks post inoculation (WPI).”
t0“Temporal Effects of a Begomovirus Infection and Host Plant Resistance on the Preference and Development of an Insect Vector, Bemisia tabaci, and Implications for Epidemics”
e1“tomato model pathosystem”
Claim · model-written summary
Whitefly TYLCV acquisition over time followed virus accumulation in tomato.
- Taxon
- tomatoSolanum lycopersicume1
- Material
- resistant and susceptible genotypese0
- Interactor
- whitefliesAleyrodoideae0pestt0
- Outcome
- TYLCV acquisition by whitefliese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“TYLCV acquisition by whiteflies over time from resistant and susceptible genotypes was also consistent with virus accumulation in the host plant.”
t0“Temporal Effects of a Begomovirus Infection and Host Plant Resistance on the Preference and Development of an Insect Vector, Bemisia tabaci, and Implications for Epidemics”
e1“tomato model pathosystem”
Claim · model-written summary
Nonviruliferous whiteflies preferred virus infected tomato plants.
- Taxon
- tomatoSolanum lycopersicume1
- Interactor
- whitefliesAleyrodoideae0pestt0
- Outcome
- preferred virus-infected plantse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“non-viruliferous whiteflies preferred virus-infected plants”
t0“Temporal Effects of a Begomovirus Infection and Host Plant Resistance on the Preference and Development of an Insect Vector, Bemisia tabaci, and Implications for Epidemics”
e1“tomato model pathosystem”
Claim · model-written summary
Viruliferous whiteflies preferred noninfected tomato plants.
- Taxon
- tomatoSolanum lycopersicume1
- Interactor
- whitefliesAleyrodoideae0pestt0
- Outcome
- preferred non-infected plantse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“viruliferous whiteflies preferred non-infected plants.”
t0“Temporal Effects of a Begomovirus Infection and Host Plant Resistance on the Preference and Development of an Insect Vector, Bemisia tabaci, and Implications for Epidemics”
e1“tomato model pathosystem”
Claim · model-written summary
The whitefly preference effect was prominent only for susceptible tomato at 6 WPI.
- Taxon
- tomatoSolanum lycopersicume1
- Material
- susceptible genotypee0
- Outcome
- this effect was prominente0
- Qualifier
- 6 WPIe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“this effect was prominent only with the susceptible genotype at 6 WPI.”
t0“Temporal Effects of a Begomovirus Infection and Host Plant Resistance on the Preference and Development of an Insect Vector, Bemisia tabaci, and Implications for Epidemics”
e1“tomato model pathosystem”
Claim · model-written summary
Whitefly development did not differ significantly between uninfected susceptible and resistant tomato genotypes.
- Taxon
- tomatoSolanum lycopersicume1
- Material
- susceptible and resistant genotypese0
- Interactor
- whitefliesAleyrodoideae0pestt0
- Outcome
- development of whitefliese0
- Direction
- not significantly differente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The development of whiteflies on non-infected susceptible and resistant genotypes was not significantly different.”
t0“Temporal Effects of a Begomovirus Infection and Host Plant Resistance on the Preference and Development of an Insect Vector, Bemisia tabaci, and Implications for Epidemics”
e1“tomato model pathosystem”
Claim · model-written summary
TYLCV infection reduced whitefly developmental time on susceptible tomato.
- Taxon
- tomatoSolanum lycopersicume1
- Material
- susceptible genotypee0
- Treatment
- infected with TYLCVe0
- Interactor
- TYLCVTomato yellow leaf curl viruse0pathogent0
- Second interactor
- whitefliesAleyrodoideae2pestt0
- Outcome
- developmental timee0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“developmental time was reduced when a susceptible genotype was infected with TYLCV.”
t0“Temporal Effects of a Begomovirus Infection and Host Plant Resistance on the Preference and Development of an Insect Vector, Bemisia tabaci, and Implications for Epidemics”
e1“tomato model pathosystem”
e2“TYLCV acquisition by whiteflies over time from resistant and susceptible genotypes was also consistent with virus accumulation in the host plant.”
The same questions in other papers
infection · Tomato yellow leaf curl virus · Solanum lycopersicum (tomato)Positive and negative results
17 papers in the same direction as this paper · 7 in the opposite direction
- positive
- negative
- positive
21 papers more in this group
See all 25 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.