Partnered with bacteria, Steinernema carpocapsae invade and kill insect hosts. While looking for a new host S. carpocapsae use a variety of techniques, such as jumping or standing on its tail while waving its head, to lure in a new host. In the study scientists used a process call RNA interference (RNAi) to look for a link between genes and the behaviors used to find a new host. RNAi reduces the expression of genes so the scientists can examine their function. The scientists used RNAi to reduce a gene that codes for a molecule known as FLP-21. Taking away the FLP-21 hindered the ability of jumping and tail standing implying that regulation of these behaviors is linked to FLP-21.
I thought this was a very interesting article. I think it's great to have an organism we can use to study parasitic infections in mammals without having the infect a mammal.