I.K. and M.P.L. analysed the data and interpreted the results.
A.B. and O.P. analyzed the data and interpreted the findings.
A.A. analysed part of the data and interpreted the results O.B. analysed part of the data and interpreted the results.
J.C., C.K., M.P., E.C. and D.S. analyzed data and interpreted the results.
analysed most data and interpreted the results, generated all figures and drafted the manuscript.
Y.L., S.L., W.Lin. and Y.M. analyzed the data and interpreted the results of the fMRI and behavioral experiments.
M.B. conceived the idea and collected the samples from Lebanon; P.K. and S.K. collected the samples from Cyprus and Greece; G.B. produced the DNA sequences; M.B. and G.B. analysed the data and interpreted the results.
performed the experiments with the help of R.P.; M.S. analysed the data and interpreted the results; M.S. wrote the paper with the help of all authors; all authors read and approved the manuscript.
Guo-long ZHAO, Li-ming YU and Wen-li GAO designed methods and experiments, carried out the laboratory experiments, and wrote the paper; Wei-xun DUAN, Bo JIANG, Xu-dong LIU, Bin ZHANG, Zhen-hua LIU, Meng-en ZHAI and Zhen-xiao JIN collected and analyzed the data and interpreted the results.
