Heat map of differential expression and cluster analysis of conserved microRNAs (miRNAs).

<p>MiRNAs who have similar pattern of differential expression in different library comparisons are clustered together. Red: up-regulation; green: down-regulation; gray: miRNA has no expression in at least one library. CK: control; A: aphid infestation treatment; M: mock puncture treatment. CK-VS-A: comparison between library CK and A; CK-VS-M: comparison between library CK and M; M-VS-A: comparison between library M and A.