Nucleotides bias of novel miRNAs and size distribution of miRNAs in P. purpureum.
a Percentage of nucleotide bias in novel miRNAs in P. purpureum. The novel miRNAs were most biased toward G. b Percentage of first-nucleotide bias in novel miRNAs in P. purpureum. The novel miRNAs were most biased toward U at the first-base position. c Size distribution of miRNAs predicted in P. purpureum. As the percentage of miRNAs, the most abundant miRNAs were 19-nt long