# Ethiopian Brassica carinata oil traits GWAS:
“A reproducible companion repository for the Ethiopian B. carinata oil composition/seed colour GWAS manuscript: data processing, GWAS post-processing, genome functional annotation, haplotype effects, GO enrichment, and key figures.”
This repository contains the reproducible analysis workflow for the manuscript:
**[Genetic architecture of fatty acid composition, oil content, and seed color in a diverse collection of Ethiopian Brassica carinata]**
Shima Mahmoudi et al.
It documents all major analysis steps:
- phenotype QC + summary statistics
- GWAS post-processing and locus definition
- Arabidopsis-based functional enrichment of the *B. carinata* genome annotation (RBH + GO transfer)
- candidate gene mapping around loci
- haplotype (LD-block) effect testing and visualization
- GO enrichment analysis for locus candidate genes
- generation of manuscript figures and tables
> Note: raw sequencing data and restricted-access phenotype files are not redistributed here. This repository provides scripts, metadata, and a reproducible structure for rerunning analyses on authorised systems (HPC/local).
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## 1) Repository structure
This repository is organised to be a lightweight umbrella that points to the code and versions used for the manuscript. It does not duplicate large datasets or every pipeline — instead it pins commits, records run order, and stores final figure-generation scripts and metadata.
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├── 00_project_overview/
│ ├── manuscript_links.md
│ ├── data_dictionary.md
│ └── analysis_plan.md
├── 01_inputs/
│ ├── phenotype/ # cleaned phenotype tables used in GWAS
│ ├── metadata/ # accession / seed colour / altitude metadata
│ └── reference/ # pointers (paths) to reference genome + GFF3
├── 02_genome_annotation/
│ └── README.md # how to reproduce Arabidopsis-transfer annotation
├── 03_gwas_postprocessing/
│ ├── configs/
│ ├── scripts/
│ └── outputs/
├─ …