MicroRNA and Putative Target Discoveries in Chrysanthemum Polyploidy Breeding

Table 1

Quantity and type distribution of small RNAs in chrysanthemum embryo.

	NE12				NE18				AE18
Category	Unique sRNAs	Percent (%)	Total sRNAs	Percent (%)	Unique sRNAs	Percent (%)	Total sRNAs	Percent (%)	Unique sRNAs	Percent (%)	Total sRNAs	Percent (%)
Total	3,864,037	100	11,535,216	100	3,780,667	100	10,805,231	100	3,734,164	100	11,220,674	100
Mapping to genome	371,560	9.62	2,251,582	19.52	379,579	10.04	2,194,212	20.31	384,290	10.29	2,383,150	21.24
miRNA	9900	0.26	410,884	3.56	9192	0.24	343,417	3.18	9871	0.26	360,354	3.21
rRNA	57,663	1.49	547,936	4.75	68,080	1.80	662,520	6.13	81,807	2.19	852,436	7.60
snRNA	1423	0.04	3088	0.03	1475	0.04	3034	0.03	1564	0.04	3278	0.03
snoRNA	421	0.01	757	0.01	461	0.01	789	0.01	613	0.02	1205	0.01
tRNA	7221	0.19	72,063	0.62	7332	0.19	97,766	0.90	9506	0.25	118,373	1.05
Unannotated	3,787,409	98.02	10,500,488	91.03	3,694,127	97.71	9,697,705	89.75	3,630,803	97.23	9,885,028	88.10