GSM2633527: Soybean Mid-Maturation Embryo Axis-Biological Replicate 3; Glycine max; RNA-Seq
Soybean seeds (Williams 82) were fixed in 3:1 ethanol:acetic acid for 16-20 hours at 4°C, then dehydrated with 75% ethanol, 85% ethanol, 95% ethanol, and three times with 100% ethanol, each wash in one hour intervals. Then they were infiltrated with 3:1 ethanol-xylenes, 1:1 ethanol-xylenes, 1:3 ethanol-xylenes, and three times with 100% xylenes, dilution in two hour intervals. They were then infiltrated with molten paraffin at 60 deg C for 1-4 days, depending on the size of the tissue. Laser capture microdissection was used to isolate specific compartments of the seed after tissues were sectioned in 5-10um sections. Total RNA was isolated with Ambion RNaqueous-Micro kit (Grand Island, NY) and quantified with Quant-iT™ RiboGreen® RNA reagent (Grand Island, NY) on a Nanodrop ND-3300. Amplification was performed using NuGen Ovation Pico WTA V1 (San Carlos, CA), starting with 15ng total RNA. Double-stranded cDNA was generated using the NuGen WT-Ovation Exon-Module (San Carlos, CA). Illumina-complatible libraries were made starting with 150 ng double-stranded cDNA using Kumar et al. (Kumar R, Ichihashi Y, Kimura S, Chitwood DH, Headland LR, Peng J, Maloof JN and Sinha NR (2012) A high-throughput method for Illumina RNA-Seq library preparation. Front. Plant Sci. 3:202. doi: 10.3389/fpls.2012.00202) Supplemetary Methods 1 library preparation protocol, starting at Day 2.  The following modifications were done: the Illumina TruSeq DNA Sample preparation kit adapters were used (1/25 dilution) and the Agilent Pfu Turbo Cx hotstart DNA polymerase was used for the PCR enrichment step (15 cycles).  Libraries were quantified using Quant-iT PicoGreen dsDNA Reagent (Grand Island, NY) and a Nanodrop ND-3300 instrument.  Phi-X174 DNA was spiked in to the library by the sequencing facility before cluster formation and sequencing.
GEO Accession
GSM2633527