bioRxiv preprint doi: https://doi.org/10.1101/674895; this version posted July 1, 2019. The copyright holder for this preprint (which was not certified by peer review) is the author/funder, who has granted bioRxiv a license to display the preprint in perpetuity. It is made available under aCC-BY 4.0 International license. 1 Phylogenomics provides new insights into gains and 2 losses of selenoproteins among Archaeplastida 3 Hongping Liang1,2,3#, Tong Wei2,3,4#, Yan Xu1,2,3#, Linzhou Li2,3,6, Sunil Kumar Sahu2,3,4, Hongli 4 Wang1,2,3, Haoyuan Li1,2, Xian Fu2,3, Gengyun Zhang2,4, Michael Melkonian7, Xin Liu2,3,4, Sibo 5 Wang2,4,5*,Huan Liu2,4,5* 6 1 BGI Education Center, University of Chinese Academy of Sciences, Beijing, China. 7 2 BGI-Shenzhen, Beishan Industrial Zone, Yantian District, Shenzhen 518083, China. 8 3 China National Gene Bank, Institute of New Agricultural Resources, BGI-Shenzhen, Jinsha Road, 9 Shenzhen 518120, China. 10 4 State Key Laboratory of Agricultural Genomics, BGI-Shenzhen, Shenzhen 518083, China. 11 5 Department of Biology, University of Copenhagen, Copenhagen, Denmark. 12 6 School of Biology and Biological Engineering, South China University of Technology, 510006, China. 13 7 Botanical Institute, Cologne Biocenter, University of Cologne, Cologne D-50674, Germany. 14 #these authors contributed equally to this work 15 * Correspondence: *
[email protected] 16 Abstract: Selenoproteins that contain selenocysteine (Sec) are found in all kingdoms of life. 17 Although they constitute a small proportion of the proteome, selenoproteins play essential roles in 18 many organisms.