Your browser doesn't support javascript.
loading
New globally distributed bacterial phyla within the FCB superphylum.
Gong, Xianzhe; Del Río, Álvaro Rodríguez; Xu, Le; Chen, Zhiyi; Langwig, Marguerite V; Su, Lei; Sun, Mingxue; Huerta-Cepas, Jaime; De Anda, Valerie; Baker, Brett J.
Afiliação
  • Gong X; Institute of Marine Science and Technology, Shandong University, Qingdao, Shandong, 266237, China. xianzhe.gong@gmail.com.
  • Del Río ÁR; Department of Marine Science, University of Texas at Austin, Port Aransas, TX, 78373, USA. xianzhe.gong@gmail.com.
  • Xu L; Centro de Biotecnología y Genómica de Plantas, Universidad Politécnica de Madrid (UPM) - Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA-CSIC), Madrid, Spain.
  • Chen Z; Institute of Marine Science and Technology, Shandong University, Qingdao, Shandong, 266237, China.
  • Langwig MV; Institute of Marine Science and Technology, Shandong University, Qingdao, Shandong, 266237, China.
  • Su L; State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong, 266237, China.
  • Sun M; Department of Marine Science, University of Texas at Austin, Port Aransas, TX, 78373, USA.
  • Huerta-Cepas J; Department of Integrative Biology, University of Wisconsin-Madison, Madison, WI, 53706, USA.
  • De Anda V; State Key Laboratory of Marine Geology, Tongji University, Shanghai, 200092, China.
  • Baker BJ; State Key Laboratory of Marine Geology, Tongji University, Shanghai, 200092, China.
Nat Commun ; 13(1): 7516, 2022 12 06.
Article em En | MEDLINE | ID: mdl-36473838
Microbes in marine sediments play crucial roles in global carbon and nutrient cycling. However, our understanding of microbial diversity and physiology on the ocean floor is limited. Here, we use phylogenomic analyses of thousands of metagenome-assembled genomes (MAGs) from coastal and deep-sea sediments to identify 55 MAGs that are phylogenetically distinct from previously described bacterial phyla. We propose that these MAGs belong to 4 novel bacterial phyla (Blakebacterota, Orphanbacterota, Arandabacterota, and Joyebacterota) and a previously proposed phylum (AABM5-125-24), all of them within the FCB superphylum. Comparison of their rRNA genes with public databases reveals that these phyla are globally distributed in different habitats, including marine, freshwater, and terrestrial environments. Genomic analyses suggest these organisms are capable of mediating key steps in sedimentary biogeochemistry, including anaerobic degradation of polysaccharides and proteins, and respiration of sulfur and nitrogen. Interestingly, these genomes code for an unusually high proportion (~9% on average, up to 20% per genome) of protein families lacking representatives in public databases. Genes encoding hundreds of these protein families colocalize with genes predicted to be involved in sulfur reduction, nitrogen cycling, energy conservation, and degradation of organic compounds. Our findings advance our understanding of bacterial diversity, the ecological roles of these bacteria, and potential links between novel gene families and metabolic processes in the oceans.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Procedimentos de Cirurgia Plástica / Genômica Tipo de estudo: Prognostic_studies Idioma: En Revista: Nat Commun Assunto da revista: BIOLOGIA / CIENCIA Ano de publicação: 2022 Tipo de documento: Article País de afiliação: China País de publicação: Reino Unido

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Procedimentos de Cirurgia Plástica / Genômica Tipo de estudo: Prognostic_studies Idioma: En Revista: Nat Commun Assunto da revista: BIOLOGIA / CIENCIA Ano de publicação: 2022 Tipo de documento: Article País de afiliação: China País de publicação: Reino Unido