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Louis Le Nézet
Louis Le Nézet

Oct 19, 2023, 5:45 PM CET

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nf-core pipeline for genomic imputation: from phasing to imputation to validation

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Louis Le Nézet and Anthony Herzig


“The widespread utilization of low-pass sequencing data necessitates the development of a dedicated nf-core imputation pipeline for accurate haplotype phasing and missing data imputation. Specifically, accurate haplotype phasing processes are essential, especially when species-specific phased panels are unavailable, such as for dogs and cats. Phasing serves as a crucial initial step of providing a reliable panel of reference haplotypes that will afford the imputation of missing genotypes for the studied samples. Furthermore, rigorous tool validation and thorough exploration of parameter impacts are crucial for assessing and enhancing the reliability of imputed genotypes.

To address these challenges, we present a nf-core-compliant pipeline specifically designed for phasing, imputation, and validation. Our pipeline enables users to leverage cutting-edge phasing and imputation tools for their genomic analyses. It will also help them to exploit the full potential of their genetic data by filling in missing information, harmonizing datasets, and improving the resolution of genetic analyses. By adhering to nf-core guidelines, this pipeline ensures users of a high standard of analysis, up-to-date tools, versioning, control testing and support from a vibrant community; appealing to users working in the world of FAIR analysis.

In summary, our dedicated nf-core pipeline provides a comprehensive solution for efficient genomic imputation, encompassing phasing, imputation, and validation stages. By employing this pipeline, researchers can save time and effort but also leverage state-of-the-art tools to enhance their various genomic studies and achieve reliable imputation results across diverse species. They will also embrace FAIR principles by providing standardized, reproducible, and community-supported solutions for genomic imputation.”

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Louis Le Nézet

Louis Le Nézet

PhD Candidate at the Institute of Genetics and Development of Rennes, University of Rennes

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