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Although the idea of coevolution was first presented 150years ago, we still only vaguely understand the genetic basis of its workings. Identifying the genes responsible for coevolutionary interactions would enable us to distinguish between fundamentally different models of coevolution and would represent a milestone in population genetics and genomics.
Ebert, D. (2018, November 1). Open questions: What are the genes underlying antagonistic coevolution? BMC Biology. BioMed Central Ltd. https://doi.org/10.1186/s12915-018-0583-7