TY - RPRT TI - Secondary environmental variation creates a shifting evolutionary watershed for the methyl- parathion hydrolase enzyme AU - Anderson, D. W. AU - Baier, F. AU - Yang, G. AU - Tokuriki, N. PY - 2019 DO - 10.1101/833764 UR - https://www.biorxiv.org/content/10.1101/833764v1 ID - 10.1101/833764 ER -