To cite MareyMap in publications use:

  Siberchicot A, Bessy A, Guéguen L, Marais G (2018).  MareyMap Online:
  A User-Friendly Web Application and Database Service for Estimating
  Recombination Rates Using Physical and Genetic Maps.  Genome Biology
  and Evolution. URL https://doi.org/10.1093/gbe/evx178

A BibTeX entry for LaTeX users is

  @Article{,
    title = {{MareyMap Online: A User-Friendly Web Application and Database Service for Estimating Recombination Rates Using Physical and Genetic Maps}},
    author = {Aur\'elie Siberchicot and Adrien Bessy and Laurent Gu\'eguen and Gabriel Marais},
    journal = {Genome Biology and Evolution},
    year = {2018},
    doi = {10.1093/gbe/evx178},
    url = {https://doi.org/10.1093/gbe/evx178},
  }

Please cite both the package and R when using them for data analysis.
See also ‘citation()’ for citing R.