Table 1.

Annotation of piRNAs on the basis of experimental evidences

Sr	Experiment methods in papers	Description	Annotation
1	Microarray, RNA-Seq	WGS	Predicted
2	Microarray, RNA-Seq, qPCR	WGS, RT-qPCR (expression validation)	Related
3	Northern blot, MTT assay, knock down, Western Blot, xenograft model etc.	Multiple experiments (mechanistic role validation)	Validated