AMRP immunostaining and in situhybridization in the digestive system. A, Esophagus immunostaining (10 gm animal). B, Crop immunostaining (10 gm animal). C, Triturating stomach immunostaining (10 gm animal). D, Filtering chamber immunostaining (200 gm animal). E, Stomatogastric ring immunostaining (10 gm animal). F, Filtering chamber immunostaining (10 gm animal). G, Stomatogastric ring in situ(10 gm animal). H, Filtering chamber in situ (10 gm animal). Scale bar: A, 500 μm (same in all panels).