The American multinational company, Monsanto has produced an insect-resistant cotton variety that is undergoing field- trails in India. A toxin gene from which ONE of the following bacteria has been transferred to this transgenic cotton ?

Monsanto’s insect‑resistant cotton (Bollgard/Bt cotton) contains a Cry toxin gene derived from the soil bacterium Bacillus thuringiensis (Bt). The widely used transgenic event expresses the cry1Ac gene, which was incorporated into cotton to provide protection against lepidopteran pests; this technology was introduced to India via Mahyco’s collaboration with Monsanto and led to commercial Bt cotton cultivation from 2002 onward [1]. Monsanto is explicitly described as having spliced the Bt toxin gene into cotton to control key cotton pests, and reviews of Bt crops note that the insecticidal Cry proteins originate from Bacillus thuringiensis strains [3].

Sources

1. [1] https://www.sciencedirect.com/science/article/abs/pii/S0022201107000651
2. [2] https://ageconsearch.umn.edu/record/297897/files/ijae-528.pdf
3. [3] https://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1475&context=entomologyfacpub