Scatter plots of the first two principal coordinates for (a) 3092 autosomal and (b) 189 Z-linked ddRAD-seq loci for Eurasian wigeon, Mareca penelope (M.p.) and American wigeon, M. americana (M.a.).

 
 
  Part of: Kulikova IV, Lavretsky P, McCracken KG, Zhuravlev YN, Miroshnichenko IL, Correll AB, Peters JL (2025) Genetic differentiation and population structure of “northern” wigeons (Anseriformes: Anatidae: Mareca americana, M. penelope). Vertebrate Zoology 75: 1-1. https://doi.org/10.3897/vz.75.e167908