V1V2 and V6 16S rDNA PCR separatly run on template DNA, amplicon                     purification, measuring amount of amplicon DNA, equal amounts of V6 and V1V2                     pooled together prior to amplicon sequencing on 454 GS FLX
V1V2 primers
A+V1_For:GCCTCCCTCGCGCCATCAGAGAGTTTGATCMTGGCTCAG ;                          B+V2_Rev:GCCTTGCCAGCCCGCTCAGCYNACTGCTGCCTCCCGTAG
V6 primers
A+1061_Rev:GCCTCCCTCGCGCCATCAGCRRCACGAGCTGACGAC ;                          B+784_For:GCCTTGCCAGCCCGCTCAGAGGATTAGATACCCTGGTA