Overview of the S. caninervis transcriptome sequencing and assembly. (A) Histogram of the length of unigenes that returned BLASX hits in public protein databases and the sequences with no hit. (B) Distribution of unigene RPKM values for identified protein coding sequences and putative non-coding sequences. (C) Histogram of the average read depth for unigenes. Sequencing depth values above 100× was binned. (D) Ortholog hit ratio analysis for S. caninervis unigene sequences.