1. Soil Microbiology Laboratory, Department of Soil Science, Luiz de Queiroz College of Agriculture, University of São Paulo, Piracicaba, São Paulo, Brazil
2. Department of Land, Air, and Water Resources, University of California, Davis, California, USA
3. Cell and Molecular Biology Laboratory, Center for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, São Paulo, Brazil
4. Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, Michigan, USA
5. Department of Biology, Indiana University, Bloomington, Indiana, USA
6. Environmental Genomics and Systems Biology Division, Lawrence Berkeley National Laboratory, Berkeley, California, USA