Infestation of Transgenic Powdery Mildew-Resistant Wheat by Naturally Occurring Insect Herbivores under Different Environmental Conditions
2011

Impact of GM Wheat on Insect Herbivores

Sample size: 72 publication Evidence: moderate

Author Information

Author(s): Álvarez-Alfageme Fernando, von Burg Simone, Romeis Jörg

Primary Institution: Agroscope Reckenholz-Tänikon Research Station ART, Zurich, Switzerland

Hypothesis

How do transgenic powdery mildew-resistant wheat lines affect insect herbivores?

Conclusion

The study found that the transgenic wheat lines had a negligible impact on different herbivorous arthropods.

Supporting Evidence

  • Transgenic Pm3b wheat lines showed lower powdery mildew infection compared to non-transformed controls.
  • Aphid populations were higher on Pm3b wheat plants than on susceptible controls in the glasshouse.
  • No significant differences in insect herbivore abundance were observed between GM and non-GM wheat in the field.

Takeaway

Scientists wanted to see if genetically modified wheat affected bugs that eat it, and they found it didn't really change how many bugs were around.

Methodology

The study involved growing GM wheat lines in both a convertible glasshouse and field conditions, assessing powdery mildew infection and insect herbivore populations.

Limitations

The convertible glasshouse had low numbers of certain herbivorous species, which may not reflect field conditions accurately.

Statistical Information

P-Value

p<0.001

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0022690

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