1 Tsinghua-Peking Center for Life Sciences, MOE Key Laboratory of Protein Sciences, IDG/McGovern Institute for Brain Research, School of Life Sciences, Tsinghua University, Beijing 100084, China.
2 State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.
3 Tsinghua-Peking Center for Life Sciences, MOE Key Laboratory of Protein Sciences, IDG/McGovern Institute for Brain Research, School of Life Sciences, Tsinghua University, Beijing 100084, China. Electronic address: zhongyithu@tsinghua.edu.cn.
4 Tsinghua-Peking Center for Life Sciences, MOE Key Laboratory of Protein Sciences, IDG/McGovern Institute for Brain Research, School of Life Sciences, Tsinghua University, Beijing 100084, China. Electronic address: liqian8@tsinghua.edu.cn.