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Correspondence: soojinyi@gatech.edu
Author contributions: D.S. and S.V.Y. conceived the study and analyzed the data. D.S. and S.V.Y. wrote the manuscript. S.V.Y. supervised the work. D.L.M. provided samples of white-throated sparrow DNA and edited the manuscript. T.S.L. and P.C. performed WGBS of the white-throated sparrows.
We thank the Yi laboratory for comments on the manuscript and Xiulan Pan for help with the illustration.
This work was supported by grants from the National Science Foundation (IOS 1656247) and the National Institutes of Health (R01MH082833) to D.L.M. and S.V.Y., as well as the Elizabeth Smithgall Watts endowment and the Georgia Tech School of Biological Sciences to S.V.Y.
© 2019 Sun et al.; Published by Cold Spring Harbor Laboratory Press