Fig. 5. LAG-2 and TBX-37 expression. (A,B) LAG-2::GFP expression in 44-cell tbx-37 tbx-38 embryos with or without killing MS. Arrows indicate positions of the ABara granddaughters in both panels. (C,D) Wild-type 24-cell embryo stained with mAbT38 (C) and with DAPI to visualize nuclei (D). This dorsal view shows four ABa descendants (white numbers; 1, ABalap; 2, ABarpa; 3, ABarpp; 4, ABalpp) and two ABp descendants (magenta; 1, ABplaa; 2, ABplap). (E,F) Wild-type 26-cell embryo showing TBX-37::GFP expression (E) and viewed with Nomarski optics (F). This ventral view shows five ABa descendants (white; 4, ABalpp; 5, ABalpa; 6, ABalaa; 7, ABaraa; 8, ABarap) and five ABp descendants (magenta; 3, ABplpa; 4, ABplpp; 5, ABprpa; 6, ABprpp; 7, ABprap); additional cells from other lineages are labeled in black. (G,H) 26-cell wild-type (G) and apx-1 mutant (H) embryos with the same dorsolateral orientation showing TBX-37::GFP expression. Two ABp descendants are indicated by arrows in both panels.