Author Contributions
Xinmin An designed and managed the project. Rengang Zhang led the genome
assembly and downstream analyses. Jianfeng Mao designed and led
evolutionary analyses. Steven H. Strauss contributed to scientific
analysis and interpretation, and edited manuscript. Stephen R. Keller
participed in scientific interpretation and writing the manuscript. Kai
Gao and Y.L. created anther plant. Kai Gao, Zhong Chen, J.L., X.Y.,
X.Y.Y., J.Z., T.Y.Z., T.G., S.H., D.Y.M., W.U.K., B.G., S.W.L., and
N.S.M. prepared and collected all plant materials. J.W., B.Q.L., W.H.L.,
and Q.Z.Y. prepared RNA samples. P.R., M.X.Y., and L.X.J., preformed
transcriptome assembly and anlysis. Xinmin An, Kai Gao, and Zhong Chen
wrote the manuscript with input from other authors. All authors approved
the manuscript before submission.