Fig 2. Expression and subcellular localization of FAHD-1 in nematodes. (A) Young adult and gravid adult hermaphrodites of the transcriptional reporter N2;Ex[pfahd-1GFP, pRF4] were monitored by confocal microscopy.
fahd-1 seems to be expressed in most tissues, including pharynx, canal cell, neurons, vulva, intestine, and stomato-intestinal muscle. Representative pictures are shown. Size bar = 100 um. (B) Confocal images of young adult C. elegans of the transcriptional reporter N2;Ex[pfahd-1GFP, pRF4]. Representative images are shown. Size bar = 10 um. Upper left panel: Detailed picture of
fahd-1 expression in the peri-vulvar region; vulva and uterine muscles are stained positive. Upper right panel: Detailed picture of
fahd-1 expression in the pharyngeal region; buccal cavity, procorpus, metacorpus, isthmus, posterior bulb, and pharyngeal-intestinal valve, as well as sensory neurons in the head were stained positive. Lower left panel: Detailed picture of
fahd-1 expression in the mid-body region; body wall muscles, lateral ganglion, dorsal chord (DC), and ventral nerve chord (VNC) were stained positive. Lower right panel: Detailed picture of
fahd-1 expression in the anus region; the stomato-intestinal muscles, the anus and the intestine were stained positive. (C) Temporal expression pattern of
fahd-1. The translational reporter N2;Ex[pfahd-1FAHD-1::GFP, pRF4] was examined (and pictured) by confocal fluorescence microscopy from the time point the eggs were laid at gastrula stage to 10-day old post fertile adults. GFP fluorescence was overlaid with phase-contrast microscopy. The FAHD1-1::GFP fusion protein is present in all stages from gastrulation to old worms. Representative images are shown. Size bar = 50 um. (D) Young adult hermaphrodites of the translational reporter N2;Ex[pfahd-1FAHD-1::GFP, pRF4] expressing the FAHD-1::GFP fusion protein (shown in green) were stained with 100 nM MitoTracker Red (shown in red) overnight. Shown here are confocal pictures of the pharynx region of the worm recorded in the green and red channel, as well as the merged pictures. Regions of overlapping staining (shown in yellow) are indicated by arrows. Representative pictures are shown. Size bar = 10 um.