Agrow is part of the Business Intelligence Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC’s registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

This copy is for your personal, non-commercial use. Please do not redistribute without permission.

Printed By

UsernamePublicRestriction
UsernamePublicRestriction

Bt-resistance costs pink bollworms

Insect populations that have evolved resistance to Bt toxins have an increased susceptibility to other insecticidal toxins, researchers from a group of US universities have found. They studied the fitness costs to pink bollworms ( Pectinophora gossypiella) of resistance to the Bt Cry1Ac toxin, which is expressed in several genetically modified varieties of cotton, maize and soybeans. Resistance is conferred by a recessive mutation in cadherin protein coding genes expressed in larval midguts. Resistant larvae produce a truncated version of the cadherin protein that cannot bind to the Bt toxin, preventing its absorbtion.

Advertisement

Topics

What to read next

Advertisement
UsernamePublicRestriction

Register

AG011554

Ask The Analyst

Please fill in the form below to send over your enquiry or check the Ask The Analyst Page to find out more about the service

Your question has been successfully sent to the email address below and we will get back as soon as possible. my@email.address.

All fields are required.

Please make sure all fields are completed.

Please make sure you have filled out all fields

Please make sure you have filled out all fields

Please enter a valid e-mail address

Please enter a valid Phone Number

Ask your question to our analysts

Cancel