Fig. 2.
Functional divergence between HipHop and K81. In I, protein-coding regions are represented as rectangular boxes, with the residues defining the A, B, and C segments numbered on top of the boxes. In II, transgenes with either an mCherry or GFP tag were expressed under the control of hiphop regulation, and all lines were able to rescue hiphop lethality. 1, partial rescue with some animals dying as pharate adults (in the text). In III, transgenes were under the control of k81 regulation and were tested for their ability to rescue k81 sterility. These transgenes were also tested for their ability to form nuclear foci in spermatids of different stages under both WT and k81 mutant background. In each chimeric gene, a segment and its corresponding parental gene have the same shading. The asterisk in the last gene corresponds to the QFVH to PTV mutation in k81PTV. 2, partial rescue (in the text).