Figure 2From: MicroRNA expression profiling of the fifth-instar posterior silk gland of Bombyx moriCross- species analysis of known miRNA families. All known miRNAs are classified into 66 miRNA families and one undefined group. The known miRNAs are distributed over 68 species; among them 40 families are widely conserved in insects and 26 families are unique to B. mori.Back to article page