Journal: The Journal of Cell Biology
Article Title: A global chromatin compaction pathway that represses germline gene expression during starvation
doi: 10.1083/jcb.202009197
Figure Lengend Snippet: A TOP-2/condensin II–dependent increase in heterochromatin marks coincides with chromatin compaction in Z2/Z3. (A) Wild-type starved L1s and starved L1s that were defective for methyltransferases (mutants for met-2 , set-25 , set-32, and F1s from animals treated with met-2/set-25 double RNAi) were fixed and stained for P-granules (white), H3K9me2 (green), H3K9me3 (red), and DNA (blue). ( n = 40). See for a summary of signal intensities. (B) L1s were either starved or fed for a varying amount of time. Samples were then fixed and stained for P-granules (white), H3K9me3 (red), H3K9me2 (green), and DNA (blue). Representative images are shown. ( n = 40). See for a summary of signal intensities. (C) Starved L1s, born from strain N2 treated with either control RNAi or capg-2 RNAi, were fixed and stained for P-granules (white), H3K9me2 (green), H3K9me3 (red), and DNA (blue). Representative images are shown ( n = 40). See for a summary of signal intensities. (D) Starved L1s, born from strain N2 treated with either control or top-2 RNAi, were fixed and stained for H3K9me3 (red) and DNA (blue). Representative images are shown ( n = 40). See for a summary of signal intensities. (E) Worms that express HPL-2::mKate were optionally treated with control and capg-2 RNAi. Live embryos were extracted and were imaged for HPL-2 signal. The white star identifies Z2/Z3. Representative images are shown ( n = 20). (F) Quantification of HPL-2::mKate signal from the images taken in E. Error bars represent one standard deviation. Scale bar represents a length of 2 µm.
Article Snippet: H3K9me2: Mouse antibody (subtype: IgG1) from Molecular and Biological Laboratories (MABI0317; MBL) was used at 1:1,000.
Techniques: Staining, Control, Standard Deviation