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Dual <i>Bt</i> genes improve chickpea pest resistance

Researchers have developed genetically modified chickpeas resistant to pod borers ( Helicoverpa armigera). The new chickpeas express two Bt endotoxin genes, cry1Ab and cry1Ac, under the control of different constitutive promoters. The pyramided plants have improved resistance to H armigera compared with isolines expressing a single cry endotoxin, even when total toxin content was 50% or less than that of single-trait plants. Details of the research were published in the Dutch journal, Euphytica.


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