Author contributions
E.N.F., M.L.T.M.P. and C.A.M.H. designed the research. E.N.F., V.K.,
D.R.C. and A.G.C., performed the experiments. T.B.O assisted in PCA and
statistical analysis. E.N.F., M.L.T.M.P., C.A.M.H., R.M.P., W.D.S and
J.N.S. assisted the experimental design, analyzed and discussed the
data. E.N.F wrote the manuscript with contributions from all the
coauthors. All authors approved the final version of the manuscript.