FISH (fluorescence in situ hybridization) is routinely used to label features in planaria (Schmidtea mediterranea). The NIGHTSEA Model SFA Stereo Microscope Fluorescence Adapter can be added to just about any existing stereo microscope to create a practical system for screening samples for successful preparation prior to moving to higher resolution imaging techniques.
All images below made with a conventional stereo microscope fitted with the Model SFA.
PIWI gene (marker for stem cells) labeled with FAM (fluorescein amidite). Specimens courtesy of Donald Von Kannon, laboratory of Dr. Wendy Beane, Western Michigan University.
(Click any image for larger view)
All specimens below courtesy of Lauren Cote, Reddien Laboratory, Whitehead Institute, MIT
Collagen labeled with FITC (fluorescein isothiocyanate)
NB.22.1e labeled with rhodamine, highlighting the mouth and the dorsal-ventral boundary
Opsin and wntP-2 labeled with FITC