alias: GSM2319711
title: GSM2319711: ddcc mutant postmature-green-stage seed; Arabidopsis thaliana; Bisulfite-Seq
library_construction_protocol: Collected seeds and leaves were quickly frozen in liquid nitrogen and ground to a fine powder using a mortar and pestle. Genomic DNA  was isolated from the powder using the DNEASY Plant Mini kit (Qiagen, Valencia, CA) according to manufacturer’s instructions. Approximately 500 nanogram of genomic DNA isolated from seeds and leaves was subjected to library preparation following the methods of Hsieh et al. (Hsieh T-F et al. 2009. Science 324:1451-1454) with modifications. We spiked-in ~ three nanogram of unmethylated lambda DNA (Promega) to serve as a control for complete bisulfite conversion. Adapter-ligated genomic DNA was subjected to two rounds of bisulfite (BS) treatment using the EpiTect kit (Qiagen, Valencia, CA).  BS-treated DNA was purified using AMpure XP beads (Beckman) and PCR-amplified for 10 cycles using ExTaq (EpiCentre) DNA polymerase.  PCR-amplified DNA fragments were size selected using the AMpure XP beads (Beckman).  Phi-X174 DNA was spiked in to the library by the sequencing facility before cluster formation and sequencing.
identifiers.namespace: GEO
identifiers.id: GSM2319711