Abstract
Transgenic Agrisure Viptera 3 corn that expresses Cry1Ab, Vip3Aa20, and EPSPS proteins and Agrisure Viptera expressing Vip3Aa20 are used for control of Spodoptera frugiperda (J.E. Smith) and Diatraea saccharalis (F.) in Brazil. To support a resistance management program, resistance risk assessment studies were conducted to characterize the dose expression of Vip3Aa20 protein and level of control against these species. The Vip3Aa20 expression in Agrisure Viptera 3 and Agrisure Viptera decreased from V6 to V10 stage of growth. However, Vip3Aa20 expression in Agrisure Viptera 3 at V6 and V10 stages was 13- and 16-fold greater than Cry1Ab, respectively. The Vip3Aa20 expression in lyophilized tissue of Agrisure Viptera 3 and Agrisure Viptera diluted 25-fold in an artificial diet caused complete larval mortality of S. frugiperda and D. saccharalis. In contrast, lyophilized tissue of Bt11 at the same dilution does not provide complete mortality of these species. Agrisure Viptera 3 and Agrisure Viptera also caused a high level of mortality against S. frugiperda and D. saccharalis. Moreover, 100% mortality was observed for S. frugiperda larvae (neonates through fifth-instar larvae) when fed in corn with the Vip trait technology. Viptera corn achieves a high level of control against S. frugiperda and D. saccharalis providing a high dose, which is an important determination to support the refuge strategy for an effective resistance management program.
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Claims 7
Claim · model-written summary
Vip3Aa20 expression decreased from V6 to V10 in both Viptera corn products.
- Taxon
- Corn
Zea mays subsp. mayst0 - Material
- Agrisure Viptera 3 and Agrisure Vipterae0
- Organ / stage
- V6 to V10 stage of growthe0
- Gene
- Vip3Aa20e0
- Outcome
- Vip3Aa20 expressione0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The Vip3Aa20 expression in Agrisure Viptera 3 and Agrisure Viptera decreased from V6 to V10 stage of growth”
t0“Corn”
Claim · model-written summary
In Agrisure Viptera 3, Vip3Aa20 expression was 13-fold greater than Cry1Ab at V6.
- Taxon
- CornZea mays subsp. mayst0
- Material
- Agrisure Viptera 3e0
- Organ / stage
- V6e0
- Gene
- Vip3Aa20e0
- Outcome
- Vip3Aa20 expressione0
- Direction
- greatere0
- Value
- 13-e0
- Comparator
- Cry1Abe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vip3Aa20 expression in Agrisure Viptera 3 at V6 and V10 stages was 13- and 16-fold greater than Cry1Ab, respectively”
t0“Corn”
Claim · model-written summary
In Agrisure Viptera 3, Vip3Aa20 expression was 16-fold greater than Cry1Ab at V10.
- Taxon
- CornZea mays subsp. mayst0
- Material
- Agrisure Viptera 3e0
- Organ / stage
- V10e0
- Gene
- Vip3Aa20e0
- Outcome
- Vip3Aa20 expressione0
- Direction
- greatere0
- Value
- 16-folde0
- Comparator
- Cry1Abe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vip3Aa20 expression in Agrisure Viptera 3 at V6 and V10 stages was 13- and 16-fold greater than Cry1Ab, respectively”
t0“Corn”
Claim · model-written summary
Viptera 3 tissue diluted 25-fold caused complete S. frugiperda larval mortality.
- Taxon
- CornZea mays subsp. mayst0
- Material
- Agrisure Viptera 3e0
- Treatment
- lyophilized tissue of Agrisure Viptera 3e0
- Interactor
- S. frugiperda
.jpg?width=60)
Spodoptera frugiperdae0pest - Outcome
- larval mortality of S. frugiperdae0
- Direction
- completee0
- Value
- 25-folde0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“The Vip3Aa20 expression in lyophilized tissue of Agrisure Viptera 3 and Agrisure Viptera diluted 25-fold in an artificial diet caused complete larval mortality of S. frugiperda and D. saccharalis”
t0“Corn”
Claim · model-written summary
Viptera tissue diluted 25-fold caused complete D. saccharalis larval mortality.
- Taxon
- CornZea mays subsp. mayst0
- Material
- Agrisure Vipterae0
- Treatment
- Agrisure Viptera diluted 25-folde0
- Interactor
- D. saccharalis
Diatraea saccharalise0pest - Outcome
- complete larval mortality of S. frugiperda and D. saccharalise0
- Direction
- completee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lyophilized tissue of Agrisure Viptera 3 and Agrisure Viptera diluted 25-fold in an artificial diet caused complete larval mortality of S. frugiperda and D. saccharalis”
t0“Corn”
Claim · model-written summary
Bt11 tissue at the same dilution did not provide complete mortality of the two pests.
- Taxon
- CornZea mays subsp. mayst0
- Material
- Bt11e0
- Outcome
- does not provide complete mortalitye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lyophilized tissue of Bt11 at the same dilution does not provide complete mortality of these species”
t0“Corn”
Claim · model-written summary
Vip trait corn caused 100% mortality of S. frugiperda larvae from neonates through fifth instar.
- Taxon
- cornZea mays subsp. mayse0
- Treatment
- corn with the Vip trait technologye0
- Interactor
- S. frugiperdaSpodoptera frugiperdae0pest
- Outcome
- mortality was observed for S. frugiperda larvaee0
- Value
- 100%e0
- Qualifier
- neonates through fifth-instar larvaee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“100% mortality was observed for S. frugiperda larvae (neonates through fifth-instar larvae) when fed in corn with the Vip trait technology”
The same questions in other papers
Zea mays subsp. mays · Spodoptera frugiperda · Zea mays (maize)Positive and negative results
8 papers in the same direction as this paper · 3 in the opposite direction
- negative
- negative
- negative
8 papers more in this group
See all 12 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.