B Cell Receptor Phylogenetics Toolkit R package dowser version 2.4.1 Provides a set of functions for inferring, visualizing, and analyzing B cell phylogenetic trees. Provides methods to 1) reconstruct unmutated ancestral sequences, 2) build B cell phylogenetic trees using multiple methods, 3) visualize trees with metadata at the tips, 4) reconstruct intermediate sequences, 5) detect biased ancestor-descendant relationships among metadata types Workflow examples available at documentation site (see URL). Citations: Hoehn et al (2022) <doi:10.1371/journal.pcbi.1009885>, Hoehn et al (2021) <doi:10.1101/2021.01.06.425648>. Software Depends: R (>= 4.4), ggplot2 (>= 3.4.0) Imports: airr, alakazam (>= 1.1.0), ape (>= 5.6), dplyr (>= 1.0), ggtree, graphics, gridExtra, markdown, methods, phangorn (>= 2.7.1), phylotate, RColorBrewer, rlang, shazam (>= 1.1.1), stats, stringr, tidyselect, tidyr, utils, pwalign, treeio Suggests: knitr, rmarkdown, testthat, BiocManager Kenneth Hoehn <kenneth.b.hoehn@dartmouth.edu> Comprehensive R Archive Network (CRAN) Kenneth Hoehn [aut, cre], Cole Jensen [aut], Jessie Fielding [aut], Hunter Melton [aut], Susanna Marquez [ctb], Jason Vander Heiden [ctb], Steven Kleinstein [aut, cph] AGPL-3 2026-03-26 application/tgz https://CRAN.R-project.org/package=dowser doi:10.32614/CRAN.package.dowser