Abstract

Tidal marsh and estuarine marine microbial sediment metagenomes from the Great Bay Estuary of New Hampshire were sequenced and found to be dominated by Proteobacteria, Bacteroidetes, Firmicutes, and Actinobacteria. Both types of sediment contained many unclassified bacterial sequences, including the mollusk pathogen Perkinsus marinus, and detectable xenobiotic degradation and nitrogen transformation genes.

Highlights

  • Tidal marsh and estuarine marine microbial sediment metagenomes from the Great Bay Estuary of New Hampshire were sequenced and found to be dominated by Proteobacteria, Bacteroidetes, Firmicutes, and Actinobacteria

  • The Coco data set contained Chloroflexi (5.66%), Firmicutes (5.08%), Actinobacteria (4.66%), Verrucomicrobia (4.43%), Planctomycetes (2.65%), and Acidobacteria (2.09%), with Chlorobi, Spirochaetes, and Nitrospirae present at Ͻ1% each and 0.84% of sequences not classified at the phylum level

  • The NI data set contained Firmicutes (3.90%), Planctomycetales (3.37%), Actinobacteria (2.83%), and Chloroflexi (2.65%), with Verrucomicrobia, Cyanobacteria, and Acidobacteria each amounting to 1 to 2% of the sequences

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Summary

Introduction

Tidal marsh and estuarine marine microbial sediment metagenomes from the Great Bay Estuary of New Hampshire were sequenced and found to be dominated by Proteobacteria, Bacteroidetes, Firmicutes, and Actinobacteria. Taxonomic profiling at the domain level showed predominantly bacterial sequences (95.64% and 96.07% for Coco and NI, respectively). The dominant bacterial phyla in both sediments were Proteobacteria (54.15% and 64.17%, respectively) and Bacteroidetes (9.28% and 10.33%, respectively) for Coco and NI.

Results
Conclusion

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