Department of Economics and Business Economics

Performing highly efficient genome scans for local adaptation with R package pcadapt version 4

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R package pcadapt is a user-friendly R package for performing genome scans for local adaptation. Here we present version 4 of pcadapt which substantially improves computational efficiency while providing similar results. This improvement is made possible by using a different format for storing genotypes and a different algorithm for computing principal components of the genotype matrix, which is the most computationally demanding step in method pcadapt. These changes are seamlessly integrated into the existing pcadapt package, and users will experience a large reduction in computation time (by a factor of 20 to 60 in our analyses) as compared to previous versions.

Original languageEnglish
JournalMolecular Biology and Evolution
Pages (from-to)2153-2154
Number of pages2
Publication statusPublished - 2020

    Research areas

  • R package, efficient, local adaptation

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