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. 2021 Jul 12;10:e67753. doi: 10.7554/eLife.67753

Figure 2. The loss of E2F in muscles has a systemic effect in the development of fat body.

(A) Confocal single plane images of third instar larval fat bodies stained with phalloidin, 4,6-diamidino-2-phenylindole (DAPI), and mouse anti-Dp antibody (Yun). White arrowheads point to newly formed binucleate cells. (B) Quantification of the percentage of binucleated cells in fat body. Date are presented as mean ± SD, n=415 cells for Mef2>Dp-RNAi, n=405 cells for cg>Dp-RNAi, and n=300 cells for each Mef2>Luc-RNAi and cg>Luc-RNAi, which did not show binucleates. Kruskal-Wallis test followed by Dunn’s multiple comparisons test, p<0.0001. Experiment was repeated two times. One representative experiment is shown. (C) Confocal single plane images of third instar larval fat bodies stained with Rad50, phalloidin, and DAPI. Scale: 100 μm. Full genotypes are (A) cg-GAL4;UAS-mCherry-RNAi, cg-GAL4/UAS-Dp[GD4444]-RNAi, Mef2-GAL4/ UAS-luciferase[JF01355]-RNAi, and UAS-Dp[GD4444]-RNAi; Mef2-GAL4, (B) cg-GAL4/UAS-RFP,Dp[GFP], cg-GAL4/Dp[GFP],UAS-Dp[GD4444]-RNAi, UAS-RFP,Dp[GFP];Mef2-GAL4, and Dp[GFP],UAS-Dp[GD4444]-RNAi,Mef2-GAL4, and (C) cg-GAL4,UAS-mRFP;UAS-luciferase[JF01355]-RNAi, cg-GAL4,UAS-mRFP/UAS-Dp[GD4444]-RNAi, Mef2-GAL4/UAS-luciferase[JF01355]-RNAi, and UAS-Dp[GD4444]-RNAi;Mef2-GAL4.

Figure 2.

Figure 2—figure supplement 1. Loss of E2F induces binucleated cells in fat body.

Figure 2—figure supplement 1.

(A) Confocal single plane images of third instar larval fat bodies stained with 4,6-diamidino-2-phenylindole (DAPI). Genotypes are E2f2 76Q1/c03344; E2f1 91/m729 compared to control w1118. (B) Confocal single plane images of third instar larval fat bodies stained with DAPI and phalloidin. Genotypes are UAS-GC3Ai/UAS-Dp[GD4444]-RNAi;Lpp-GAL4 compared to control UAS-GC3Ai; Lpp-GAL4/UAS-mCherry-RNAi. (C) Confocal single plane images of third instar larval fat bodies from Mef2>Luc-RNAi, Mef2>Dp-RNAi, and cg>DpRNAi larvae stained with anti-Mre11 antibodies, phalloidin, and DAPI. Scale: 100 μm. White arrowheads point to binucleated cells.