To cite statgenMPP in publications use:

  Wenhao Li, Martin P Boer, Bart-Jan van Rossum, Chaozhi Zheng, Ronny V
  L Joosen, Fred A van Eeuwijk, statgenMPP: an R package implementing
  an IBD-based mixed model approach for QTL mapping in a wide range of
  multi-parent populations, Bioinformatics, Volume 38, Issue 22, 15
  November 2022, Pages 5134–5136,
  https://doi.org/10.1093/bioinformatics/btac662

A BibTeX entry for LaTeX users is

  @Article{,
    title = {statgenMPP: an R package implementing an IBD-based mixed model approach for QTL mapping in a wide range of multi-parent populations},
    author = {Wenhao Li and Martin P Boer and Bart-Jan {van Rossum} and Chaozhi Zheng and Ronny V L Joosen and Fred A {van Eeuwijk}},
    journal = {Bioinformatics},
    year = {2022},
    volume = {38},
    number = {22},
    pages = {5134-5136},
    url = {https://doi.org/10.1093/bioinformatics/btac662},
    doi = {10.1093/bioinformatics/btac662},
  }