Classification of annotated small RNAs in male and female blastocysts.

*The number of genes mapped is not always equal to the “Total ncRNA” plus “Only genomic” counts because of multiple annotations for single read sequences.Abbreviations: miRNA_mature, micro RNA mature form; Mt_tRNA, mitochondrial transfer RNA; Mt_rRNA, mitochondrial ribosomal RNA; snRNA, small nuclear RNA; rRNA, ribosomal RNA; snoRNA, small nucleolar RNA; miscRNA, miscellaneous RNA; lincRNA, large intergenic noncoding RNA; miRNA_hairpin: micro RNA stem-loop sequence obtained from miRBase.**The sequences classified as “Only genomic” were further annotated against RepeatMasker and the tRNA database. The results are shown in Table S1.