Today I've brought you a look into a topic we've covered in class and in lab. Fluorescence in bacteria is one thing, but the study conducted in Nature magazine shows viewers what happens when you add these fluorescent proteins into zebrafish DNA. Scientists have studied how DNA can be transferred into other organisms and through experimentation have found that when the skin cells regenerate in the fish after sustaining damage they actually made several different bundles of color. When these pigments are allowed to be varied with these colors rather than following the normal genetic make-up, the expression is pretty interesting to see. It doesn't help the fish to be fluorescent in the wild as they can be spotted by predators. But it gives us a way to view what happens when skin cells are doing their designated function, as well as explains a little as to why scarred tissue appears different than the skin around it.
here. Other than these pictures they have plenty of other data that goes into detail about the experiment itself. They talked about barcoding the superficial epithelial cells, (SEC's) those on the outer part of the skin, so that each variation of color is linked to specific strains of cells. They documented the interactions the cells underwent to achieve these interactions.