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GTEX-Analysis

Using the GTEx V8 data, I performed GCTA analysis. The genotype file exists in

/gpfs/data/im-lab/nas40t2/Data/GTEx/V8/genotype/plink_files/GTEx_Analysis_2017-06-05_v8_WholeGenomeSeq_838Indiv_Analysis_Freeze.SHAPEIT2_phased.vcf.gz

From there, I converted the vcf file into plink format using

plink2 --vcf /gpfs/data/im-lab/nas40t2/Data/GTEx/V8/genotype/GTEx_Analysis_2017-06-05_v8_WholeGenomeSeq_838Indiv_Analysis_Freeze.SHAPEIT2_phased.vcf.gz --make-bed --double-id --out /gpfs/data/im-lab/nas40t2/Data/GTEx/V8/genotype/plink_files/GTEX_ new

Note: without the --double-id plink will create the .fam file with FID being zero

I then created a grm using the plink files

gcta --bfile /gpfs/data/im-lab/nas40t2/Data/GTEx/V8/genotype/plink_files/GTEX_new /--autosome --maf 0.01 --make-grm --out /gpfs/data/im-lab/nas40t2/Data/GTEx/V8/genotype/plink_files/GTEX_grm_output 

I then edited the phenotype file (gtex_cortex_models_10_10_20.xlsx) to the gcta format Check analysis for code to create phenotype file

I then ran gcta in HPC for each phenotype (~250)

gcta --grm-bin /gpfs/data/im-lab/nas40t2/Data/GTEx/V8/genotype/plink_files/GTEX_grm_output --pheno /gpfs/data/im-lab/nas40t2/natasha/gtex_pheno.txt --reml --out /gpfs/data/im-lab/nas40t2/natasha/gtex_output --thread-num 4 --mpheno ___

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This is a repo that contains the analysis scripts for the GTEX Reaction Scores project

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