Study of GM mosquitoes highlights difficulties facing malaria control technique

The first laboratory population study of genetically modified mosquitoes identifies issues that need to be faced in the task of turning mosquitoes from disease carriers into disease fighters. Scientists from Imperial College London report in Science today that populations including genetically modified mosquitoes quickly lose their test marker gene when they are bred with unmodified mosquitoes. The scientists say their results have several lessons for further work on developing GM mosquitoes, and they suggest a number of ways around the problems they have observed.