AUTHORCONTRIBUTIONS
P.Z conceived and designed the study. F.Y., and P.Z. collected the
samples. P.Z. took the morphology
picture of Chinese walnut. F.Y., P.P.C., R.M.X., R.X.S., Y.J.Y., and
G.Y. and performed the experiments. F.Y., R.X.S., and P.Z. analyzed and
interpreted the assembly and annotations. F.Y., P.P.C., M.D., G.Y., and
M.Y. supported the software. F.Y. and P. Z. performed the comparative
genome analysis. F.Y., and P.Z. performed the whole genome duplication
analysis. F.Y., and P.Z. wrote the draft manuscript and then P.Z. and
K.W. edited and revised the English writing of this manuscript. All
authors contributed and approved the final manuscript.