Abstract
The fall armyworm, Spodoptera frugiperda (J. E. Smith), is a target species of transgenic corn containing pyramided Bt genes in the United States. During 2011, a total of 149 F2 two-parental family lines were established using single-pairing of S. frugiperda collected from 3 locations in Louisiana and Florida. This study examined the susceptibility of these F2 two-parental family lines to 2 commonly used pyramided Bt corn traits, Genuity®VT Double Pro™ and Genuity®SmartStax™. Nine out of the 149 family lines showed less susceptibility to the leaf tissue of Genuity®VT Double Pro™ or Genuity®SmartStax plants. Larvae of these 9 family lines exhibited significant survivorship and growth on leaf tissue of the Bt corn plants. Two laboratory colonies were established from the F2 survivors of 2 of the 9 family lines. However, larvae from both colonies could not survive on whole plants of their corresponding Bt corn products in the greenhouse, suggesting these families were not resistant to the pyramided Bt corn traits. The results suggest that the pyramided Bt corn products containing Genuity®VT Double Pro™ or Genuity®SmartStax™ corn traits are effective in protecting against S. frugiperda.
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Claims 5
Claim · model-written summary
Nine of 149 F2 family lines of S. frugiperda showed less susceptibility to the leaf tissue of Bt corn.
- Taxon
- corn
Zea mays subsp. mayse0 - Interactor
- Spodoptera frugiperda
.jpg?width=60)
Spodoptera frugiperdae0pest - Outcome
- susceptibilitye1
- Value
- Ninee1
- Qualifier
- out of the 149 family linese1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The fall armyworm, Spodoptera frugiperda (J. E. Smith), is a target species of transgenic corn containing pyramided Bt genes in the United States”
e1“Nine out of the 149 family lines showed less susceptibility to the leaf tissue of”
Claim · model-written summary
Larvae of these nine family lines showed significant survivorship and growth on leaf tissue of Bt corn plants.
- Taxon
- Bt corne2
- Interactor
- Spodoptera frugiperdaSpodoptera frugiperdae0pest
- Outcome
- survivorship and growthe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The fall armyworm, Spodoptera frugiperda (J. E. Smith), is a target species of transgenic corn containing pyramided Bt genes in the United States”
e2“Larvae of these 9 family lines exhibited significant survivorship and growth on leaf tissue of the Bt corn plants”
Claim · model-written summary
Larvae of both colonies could not survive on whole Bt corn plants in the greenhouse.
- Taxon
- Bt corne3
- Interactor
- Spodoptera frugiperdaSpodoptera frugiperdae0pest
- Outcome
- survivee3
- Setting
- greenhousee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The fall armyworm, Spodoptera frugiperda (J. E. Smith), is a target species of transgenic corn containing pyramided Bt genes in the United States”
e3“larvae from both colonies could not survive on whole plants of their corresponding Bt corn products in the greenhouse”
Claim · model-written summary
The selected families were not resistant to the pyramided Bt corn traits.
Verbatim
e0“The fall armyworm, Spodoptera frugiperda (J. E. Smith), is a target species of transgenic corn containing pyramided Bt genes in the United States”
e4“suggesting these families were not resistant to the pyramided Bt corn traits”
Claim · model-written summary
Pyramided Bt corn products are effective in protecting against S. frugiperda.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- pyramided Bt corne4
- Interactor
- S. frugiperdaSpodoptera frugiperdae5pest
- Outcome
- protecting againste5
- Direction
- effectivee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The fall armyworm, Spodoptera frugiperda (J. E. Smith), is a target species of transgenic corn containing pyramided Bt genes in the United States”
e4“suggesting these families were not resistant to the pyramided Bt corn traits”
e5“are effective in protecting against S. frugiperda”
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See all 12 papers →transgenic · Spodoptera frugiperda · Zea mays (maize)Positive and negative results
13 papers in the same direction as this paper · 2 in the opposite direction
- negative
- positive
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See all 16 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.