TABLE 2.

Phylogenetic affiliations of archaeal 16S rRNA genes and rRNA clone libraries at each depth below the seafloor and primer combination

Phylogenetic affiliationNo. of clones from 16S rRNA genesNo. of clones from rRNA at 15-18 cm
0-3 cm15-18 cm18-21 cm
A8f-A1492r/A21f-915rA8f-Eel932rA21f-A915rA8f-A1492rA8f-A1492r/ A21f-915rA8f-A1492r
Euryarchaeota
    ANME-1b37806620
    Methanosarcinales (GoM Arc I)23411
    Outside Methanosarcinales/ Methanomicrobiales110
    Thermoplasmatales
        MBG-D222342
        Other Thermoplasmatales2
Crenarchaeota
    MG-I2
    MBG-B222
Total no. of clones466336867921