@Article{yu2020ggtree,
    title = {Using ggtree to Visualize Data on Tree-Like Structures},
    author = {Guangchuang Yu},
    year = {2020},
    journal = {Current Protocols in Bioinformatics},
    volume = {69},
    pages = {e96},
    number = {1},
    url = {https://currentprotocols.onlinelibrary.wiley.com/doi/abs/10.1002/cpbi.96},
    doi = {10.1002/cpbi.96},
}

@article{yu2017ggtree,
    title={ggtree: an R package for visualization and annotation of phylogenetic trees with their covariates and other associated data},
    author={Guangchuang Yu and David Smith and Huachen Zhu and Yi Guan and Tommy Tsan-Yuk Lam},
    journal={Methods in Ecology and Evolution},
    volume={8},
    issue={1},
    pages={28--36},
    year={2017},
    doi={10.1111/2041-210X.12628},
    url={http://onlinelibrary.wiley.com/doi/10.1111/2041-210X.12628/abstract},
    publisher={Wiley Online Library}
}

@article{yu2018two,
    title={Two methods for mapping and visualizing associated data on phylogeny using ggtree},
    author={Guangchuang Yu and Tommy Tsan-Yuk Lam and Huachen Zhu and Yi Guan},
    journal={Molecular Biology and Evolution},
    volume={35},
    issue = {2},
    pages={3041--3043},
    year={2018},
    doi = {10.1093/molbev/msy194},
    url = {https://doi.org/10.1093/molbev/msy194},
    publisher={Oxford University Press}
}

@Book{hadlyggplot2,
    author = {Hadley Wickham},
    title = {ggplot2: Elegant Graphics for Data Analysis},
    publisher = {Springer-Verlag New York},
    year = {2016},
    isbn = {978-3-319-24277-4},
    url = {https://ggplot2.tidyverse.org}
}
