TABLE 3.   Distribution of representative T-RFLP ribotypes and clone types of archaeal rDNA obtained from a black smoker chimneya


Clone type (T-RFLP ribotype) No. of archaeal rDNA clones characterized per subsample:
I II III IV V VI

MHVG-1
    pPACMA-Y (9) 1 3 0 0 0 0
Crenarchaeota
  Igniococcales
    pPACMA-I (5) 7 2 0 11 0 0
    pPACMA-X (5) 13 4 0 25 3 0
Euryarchaeota
  Thermococcales
    pPACMA-C (6) 19 25 29 0 0 0
    pPACMA-A (6) 0 0 9 0 0 0
    pPACMA-B (6) 0 0 2 0 0 0
  Unknown group
    pPACMA-N (8) 1 3 0 0 2 0
  DHVEG
    pPACMA-M (10) 0 5 0 0 0 0
    pPACMA-Q (10) 2 0 1 0 0 0
    pPACMA-W (7) 0 1 1 0 0 0
    pPACMA-P (7) 1 2 2 0 0 0
    pPACMA-V (7) 0 3 1 0 0 0
  Halobacteriales
    pPACMA-H (3) 0 0 0 0 9 21
    pPACMA-T (3) 0 0 0 0 0 7
    pPACMA-J (4) 0 0 0 1 0 0
    pPACMA-L (3) 0 0 0 1 5 8
    pPACMA-U (4) 0 0 0 0 0 5
    pPACMA-K (4) 0 0 0 2 0 0
    pPACMA-E (4) 0 0 0 3 31 10
    pPACMA-S (4) 0 0 0 0 1 0
    pPACMA-G (4) 0 0 0 1 0 0
    pPACMA-F (4) 0 0 0 0 13 2
  Total 44 48 45 44 65 53

a Composition of archaeal rDNA clone types was determined by partial sequencing analysis of rDNA clones of archaeal primer PCR libraries.