A Subset of C. elegans Male-specific Sensory Neurons are Labeled with a GFP Reporter Gene (image) American Association for the Advancement of Science Share Print E-Mail Caption A subset of C. elegans male-specific sensory neurons are labeled with a GFP reporter gene. The male has four sex-specific sensory neurons in the head (left end), but most of the male-specific neurons are in the tail. The tail sensory neurons shown innervate finger-like rays that extend out of the body in an acellular fan. They sense contact with the hermaphrodite and trigger copulation. The circles of fluorescence are the cell bodies. Credit Image courtesy of D. Portman Usage Restrictions Please cite the owner of the image when publishing. This image may be freely used by reporters as part of news coverage, with proper attribution. Non-reporters must contact Science for permission. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.