1. Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
2. Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
3. Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, PO Box 999, Richland, Washington 99352, United States
4. Joint BioEnergy Institute, Emeryville, California 94608, United States
5. Environmental Genomics and Systems Biology, Biosciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
6. School of Biological Sciences, Washington State University, PO Box 644236, Pullman, Washington 99164-4236, United States