Figure 1.

Analysis of 16S rDNA sequencing results. (a) Statistics of the tags and OTUs from the 16S rDNA sequencing results. Total tags (columns in blue) represent available sequence numbers; clean tags (columns in green) represent the valid sequence numbers; OTUs (column in purple) represent the final OUT numbers. (b) Overlapped operational taxonomic units (OTUs) between normal and embryonic death groups by Venn diagram. (c) Rank abundance curve of groups. x-axis represents the abundance species rank, and y-axis represents the relative abundance measured on the log scale.