Table 1.

Distribution of sRNA sequences among nuclear, mitochondrial and plastid genomes.

Organism	Total	Nuclear	mtDNA	cpDNA (m0)	cpDNA (m2)	cpDNA total	Not aligned
Arabidopsis	14,113,280	6,369,985	18,393	2,778,067	454,904	3,232,971	4,491,931
	100%	45.13%	0.13%	19.68%	3.22%	22.9%	31.82%
Soybean	34,313,559	28,219,467	46,399	1,438,193	208,417	1,646,610	4,401,083
	100%	82.23%	0.13%	4.19%	0.60%	4.79%	12.82%
Rice	25,247,958	21,479,400	12,003	768,437	144,609	913,046	2,843,509
	100%	85.07%	0.05%	3.04%	0.57%	3.62%	11.27%

m0, reads with no mismatches.

m2, reads with until 2 mismatches.