Molecular Phylogenetics and Evolution, 139 (2019) 106563(2020)

In this study, we use genome-wide Single Nucleotide Polymorphisms to test genetic differentiation between these geographically isolated taxa and evaluate the main drivers of population structure among breeding colonies of macaroni/royal penguins. Genetic similarity observed between macaroni and royal penguins suggests they constitute a single evolutionary unit.

  https://www.sciencedirect.com/science/article/abs/pii/S1055790319302489?via%3Dihub