global patterns of bacterial beta-diversity in seafloor and seawater ecosystems全球模式的细菌beta-diversity在海底和海水生态系统.pdfVIP

Global Patterns of Bacterial Beta-Diversity in Seafloor and Seawater Ecosystems 1 2 3 4 2 Lucie Zinger , Linda A. Amaral-Zettler , Jed A. Fuhrman , M. Claire Horner-Devine , Susan M. Huse , 2 5 2 1,6 1,6 David B. Mark Welch , Jennifer B. H. Martiny , Mitchell Sogin , Antje Boetius , Alban Ramette * 1 Microbial Habitat Group, Max Planck Institute for Marine Microbiology, Bremen, Germany, 2 Josephine Bay Paul Center, Marine Biological Laboratory, Woods Hole, Massachusetts, United States of America, 3 Department of Biological Sciences, University of Southern California, Los Angeles, California, United States of America, 4 School of Aquatic and Fishery Sciences, University of Washington, Seattle, Washington, United States of America, 5 Department of Ecology and Evolutionary Biology, University of California Irvine, Irvine, California, United States of America, 6 HGF MPG Joint Research Group on Deep Sea Ecology and Technology, Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany Abstract Background: Marine microbial communities have been essential contributors to global biomass, nutrient cycling, and biodiversity since the early history of Earth, but so far their community distribution patterns remain unknown in most marine ecosystems. Methodology/Principal Findings: The synthesis of 9.6 million bacterial V6-rRNA amplicons for 509 samples that span the global ocean’s surface to the deep-sea floor shows that pelagic and benthic communities greatly differ, at all taxonomic levels, and s