phasing-imputation

Generates phased and imputed genotypes from VCF data using reference panels and Python tools.

25|5|Updated Mar 22, 2026
One-click install
npx skills add https://github.com/zongtingwei/Bioclaw_Skills_Hub --skill phasing-imputation
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: phasing-imputation
Source: https://github.com/zongtingwei/Bioclaw_Skills_Hub/tree/main/skills/genomics-and-variation/phasing-imputation
Command: npx skills add https://github.com/zongtingwei/Bioclaw_Skills_Hub --skill phasing-imputation

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

Phasing-imputation solves the challenge of generating haplotype-resolved and imputed genotypes from genotype data.

Core Features & Use Cases

  • Phasing genotypes to create haplotype-aware data suitable for downstream analyses.
  • Imputing missing variants using reference panels with QC metrics to assess confidence.
  • Use Case: Researchers with array or sequencing-derived genotypes can obtain phased genotypes, imputed variants, and QC summaries for association studies.

Quick Start

Provide VCF genotype data, sample metadata, and a matched reference panel to start phasing and imputation.

Frequently Asked Questions about phasing-imputation

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I phase genotypes and impute missing variants from VCF data?

You can phase genotypes and impute missing variants from VCF data by providing your genotype file, sample metadata, and a matched reference panel to generate haplotype-resolved genotypes and imputation QC metrics.

What is haplotype phasing and imputation for array and sequencing variants?

Haplotype phasing resolves genotypes into maternal and paternal haplotypes, while imputation fills missing variants using a reference panel, producing ancestry-aware data suitable for downstream association studies.

Do I need a reference panel for genotype imputation and haplotype phasing?

Yes, a suitable reference panel is required for genotype imputation and haplotype phasing. It enables ancestry-aware matching and provides the haplotype context needed to impute missing variants with confidence.

Can I use bcftools and pandas for phasing and imputation workflows?

Yes, the workflow uses Python-based tooling with wrappers for phasing and imputation engines, plus bcftools and pandas for VCF data handling and processing sample metadata to generate imputed genotype sets.

What is the best way to generate imputation QC metrics for association studies?

To generate imputation QC metrics, run imputation using a matched reference panel and sample metadata; the workflow outputs imputation QC metrics alongside imputed genotype sets to assess confidence for association studies.

Does phasing-imputation support both array and sequencing-derived genotypes?

Yes, phasing-imputation supports ancestry-aware phasing, reference-panel matching, and QC-driven analyses across both array and sequencing variants, producing phased genotypes and imputed variants for downstream use.