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Sample GSM4904384 Query DataSets for GSM4904384
Status Public on Nov 12, 2020
Title HiC_replicate1
Sample type SRA
 
Source name Leaf tissue
Organism Zea mays
Characteristics genotype: B73
tissue: leaf
development stage: v04
Growth protocol Plants were grown under normal light and temperature conditions in a static greenhouse and tissue was collected when plants reached the v04 stage.
Extracted molecule genomic DNA
Extraction protocol Leaf tissue was collected and grinded before storage at -80C. Lysates were recovered according to the Dovetail Hi-C Library Preparation Kit protocol. Since tissues had previously been grinded (in liquid nitrogen) before long-term storage at -80°C, 2ml 1X PBS and 81μl 37% formaldehyde were added directly to 250mg of frozen and grinded tissue in a 15-ml tube then incubated at room temperature for 15min, prior to completing the protocol.
Libraries were constructed with the Dovetail Hi-C Library preparation Kit (Dovetail), according to the manufacturer’s instructions, including protocol modifications recommended by Dovetail for plant tissue.
 
Library strategy Hi-C
Library source genomic
Library selection other
Instrument model Illumina NovaSeq 6000
 
Description Reports for all chromosomes except Chr0. HITADs file contains hierarchical TADs produced by runHIC followed by the hitad pipeline; default parameters. HIC file contains interaction matrices produced by Juicer from Juicer Tools 1.9.9 as inter.hic. HiC_replicate1-merged_loops.bedpe contains loops called by HICCUPS from Juicer Tools 1.9.9 based on HiC_replicate1-inter.hic.
Data processing Illumina CASAVA 1.8 software was used for basecalling.
Following quality score-based trimming , reads with adapter sequences or of low quality were removed.
Filtered reads were processed using the Juicer package versions 1.9.9 and 1.14.08, for replicates 1 and 2, respectively.
Hierarchical TADs were called for both Hi-C replicates using HiTAD from the TADLib package. Default parameters were used. The related runHiC pipeline was run for each replicate, also with defaults, to generate the .cool files needed for HiTAD analysis.
Chromatin loops were detected using the HICCUPS software package from the Juicer package versions 1.9.9 and 1.14.08, for replicates 1 and 2, respectively.
Genome_build: Zea_mays.AGPv4
Supplementary_files_format_and_content: Hi-C interaction matrices (.hic" files) containing paired-end Hi-C reads
 
Submission date Nov 11, 2020
Last update date Nov 12, 2020
Contact name John Anthony Crow
E-mail(s) johna.crow@corteva.com
Organization name Corteva Agriscience
Department Applied Science and Technology
Lab Genomics Technologies
Street address 7000 NW 62nd Ave
City Johnston
State/province Iowa
ZIP/Postal code 50131
Country USA
 
Platform ID GPL29401
Series (1)
GSE161294 Co-location of chromatin loop anchors with the gene transcription machinery in maize.
Relations
BioSample SAMN15573781
SRA SRX8766952

Supplementary file Size Download File type/resource
GSM4904384_HiC_replicate1-hitads.txt.gz 81.3 Kb (ftp)(http) TXT
GSM4904384_HiC_replicate1-inter.hic 6.3 Gb (ftp)(http) HIC
GSM4904384_HiC_replicate1-merged_loops.bedpe.gz 908.0 Kb (ftp)(http) BEDPE
SRA Run SelectorHelp
Raw data are available in SRA
Processed data provided as supplementary file

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