Expression profiling of pea aphid miRNAs. After microarray hybridization and statistical analyses, a set of pea aphid miRNAs differentially regulated in parthenogenetic females producing parthenogenetic females (Virginoparae, V), parthenogenetic females producing sexual individuals (Sexuparae, S) and sexual females (Oviparae, O) was identified. Three replicates are indicated (labelled 1 to 3) and profiles clustering are presented for miRNAs significantly regulated between morphs. Colour coding: red, up-regulated, green, down-regulated, black, not regulated). The log score for fold change is indicated.