Post-Embryo Fax-sorted cells TransFrags

tiling arrays (Waterston project, Miller subgroup)


RNA was isolated from different post-embryonic stages, and co-immunoprecipitation with reporter antibodies. This was amplified for application as a labeled, double stranded cDNA to the Affymetrix C. elegans 1.0 whole genome tiling array. A smoothed density plot (log 2 transformed with a window size of 110) of probe intensities and predicted transcriptionally active regions (TARs) are shown.

Series Description

Our experiments are designed to detect all C. elegans transcripts by hybridizing RNA to commerically available genome tiling arrays. To maximize the chances of detecting rare transcripts with limited expression in specific cells, we are extracting RNA from selected embryonic cells isolated by FACS and from postembryonic cells by use of the mRNA tagging method.


  1. Growth and isolation: Isolation of cell specific RNA by mRNA tagging, Worm staging and isolation, Worm growth
  2. Sample preparation: Affy_Hybridization_and_Scanning, CDNA_amplification_for_tiling_arrays
  3. Data Analysis: Tiling_Array_Normalization_and_Smoothing, Tiling_Array_Signal_Extraction, Tiling_Array_TAR_analysis

Experimental Reagents

    Growth Conditions:
  1. Antibodies: EZview Red ANTI-FLAGĀ® M2 Affinity Gel
  2. Arrays: Affymetrix GeneChip C. elegans tiling 1.0R array

Sample Details

  1. Animals/Lines: L3-L4-reference, L2-panneural, NC1598, NC1021, L2-excretory_cell, body wall muscle, L2-glr, OS3991, L2-intestine, SD1075, mid-L2 larva 20dC, SD1084, L3-L4-hypodermis, NC1668, YA-CEPsh, YA-reference, L2-GABA_neurons, NC1790, SD1241, NC1627, L2-coelomocytes, Young Adult 20dC 72hr post-L1, NC694, L3-L4-PVD_OLL, L3-L4-dop, NC1842, NC1700, L2-reference, L2-A-class, L3-L4 larva 20dC 22h 23dC 24hr post-L1, N2

Release Date: 2009-11-18