title: 16S rRNA gene analysis of Irinovskoe, Ashadze, Semyenov II and Logatchev hydrothermal vents in Mid-Atlantic Ridge
design: The V3-V4 region of 16S rRNA gene was amplified as described in Meier et al., (2016) (Environ microbiol) . The PCR products were pooled in equimolar amounts and sequenced on a Sequel II platform (PacBio, CA, USA) at the Max-Planck-Genome-Centre (Cologne, Germany)