Table 1.

Summary of data generated from small RNA deep sequencing.

Sample	Total Reads	Clean Reads	Unique Reads	Mapped Reads a	Percentage b
WRRh	22,080,436	20,424,161	577,820	433,846	75.08%
WRRl	19,917,025	18,160,137	513,726	392,323	76.37%
XHh	16,410,221	14,806,039	494,539	366,898	74.19%
XHl	19,473,651	17,295,270	625,063	482,989	77.27%

^a The unique reads mapped in chicken genome; ^b The percentage of mapped reads in unique reads.