Project description:To identify genes differentially expressed during L3 lethargus, we collected RNA during the third larval stage (L3) lethargus period, 37 hours after feeding developmentally-arrested L1 animals. Animals in lethargus were identified based on quiescence of locomotion and feeding. Additional time point for RNA collection was in the mid-L3 stage, 32 hours after feeding developmentally-arrested L1 animals. These samples were interrogated with the Affymetrix C. elegans Genome Array. A total of 153 gene transcripts were up regulated, and 48 gene transcripts were down regulated, during the L3 lethargus period compared to the L3 stage (false discovery rate (FDR) < 0.05).
Project description:We compared the pattern of H4K20me1 at the L3 stage in wild-type and set-4 mutants by ChIP-seq. In wild-type, H4K20me1 levels on the X chromosome are higher than on autosomes. In set-4 mutants, this difference is lost. ChIP-seq of H4K20me1 at the L3 stage in wild-type and set-4 mutant L3 larvae.
