Skip to main content
U.S. flag

An official website of the United States government

Comparison of microbiomes of cold-water corals Primnoa pacifica and Primnoa resedaeformis, with possible link between microbiome composition and host genotype

August 17, 2018

Cold-water corals provide critical habitats for a multitude of marine species, but are understudied relative to tropical corals. Primnoa pacifica is a cold-water coral prevalent throughout Alaskan waters, while another species in the genus, Primnoa resedaeformis, is widely distributed in the Atlantic Ocean. This study examined the V4-V5 region of the 16S rRNA gene after amplifying and pyrosequencing bacterial DNA from samples of these species. Key differences between the two species’ microbiomes included a robust presence of bacteria belonging to the Chlamydiales order in most of the P. pacifica samples, whereas no more than 2% of any microbial community from P. resedaeformiscomprised these bacteria. Microbiomes of P. resedaeformis exhibited higher diversity than those of P. pacifica, and the two species largely clustered separately in a principal coordinate analysis. Comparison of P. resedaeformis microbiomes from samples collected in two submarine canyons revealed a significant difference between locations. This finding mirrored significant genetic differences among the P. resedaeformis from the two canyons based upon population genetic analysis of microsatellite loci. This study presents the first report of microbiomes associated with these two coral species.

Citation Information

Publication Year 2018
Title Comparison of microbiomes of cold-water corals Primnoa pacifica and Primnoa resedaeformis, with possible link between microbiome composition and host genotype
DOI 10.1038/s41598-018-30901-z
Authors Dawn B. Goldsmith, Christina A. Kellogg, Cheryl L. Morrison, Michael A. Gray, Robert P. Stone, Rhian G. Waller, Sandra D. Brooke, Steve W. Ross
Publication Type Article
Publication Subtype Journal Article
Series Title Scientific Reports
Series Number
Index ID 70198773
Record Source USGS Publications Warehouse
USGS Organization St. Petersburg Coastal and Marine Science Center