Fig. 3From: A novel ultra high-throughput 16S rRNA gene amplicon sequencing library preparation method for the Illumina HiSeq platformScores plot based on a principal component analysis model computed from the matrix of species relative abundances from dataset 1 (Additional file 4: Table S3). a. Samples are colored according to the reverse primer used for PCR1. b. Samples are colored according to the forward primer used for PCR1. In both a and b, the first two dimensions, explaining 62% of the total variance, are shownBack to article page