Plant Circular RNA Database

Release 1

In the first version of PlantcircBase, circRNA information from five organisms (Arabidopsis thaliana, Hordeum vulgare, Oryza sativa, Solanum lycopersicum, Zea mays), were included. And the total number of circRNA entries is 77,595. Detail statistics were shown in tables as following.

Table 1.1 The number of circRNAs in PlantcircBase (Release 1)

Organisms	Number of circRNAs		Full-length sequence of circRNAs		Acting as miRNA sponge*	Networks of circRNA-miRNA-mRNA*	Tissues	References
Organisms	Total	Back-splicing site valided	Total	Sanger sequencing valided	Acting as miRNA sponge*	Networks of circRNA-miRNA-mRNA*	Tissues	References
Oryza sativa	12,037	10	0	0	405	251	Roots, shoots	Ye et al., 2015
	2,354	30	0	0	73	49	Leaves	Lu et al., 2015
	2,824	0	2,824	61	14	10	Roots	Ye et al., 2016
	26,160	37	0	9	585	343	Leaves, anthers, pistils, seeds, shoots, roots	This study
Arabidopsis thaliana	6	6	0	0	0	0	Roots	Wang et al., 2014
	6,012	0	0	0	231	188	Leaves	Ye et al., 2015
	165	0	0	0	5	4	Siliques, seeds	Lu et al., 2015
	970	6	0	0	10	6	NA	Sun et al., 2016
	31,079	13	0	0	822	691	Inflorescences, roots, leaves, aerial	This study
Zea mays	496	0	0	0	1	1	Shoots	Lu et al., 2015
Hordeum vulgare	47	16	0	0	0	0	Leaves and seeds	Darbani et al. 2016
Solanum lycopersicum	854	0	0	0	4	3	Fruit	Zuo et al. 2016

*miRNA sponges were predicted using eTM_finder (Ye et al., 2014); miRNA targets were predicted using psRNATarget (Dai and Zhao 2011) in our lab.

Table 1.2 Summary of circRNA entries in PlantcircBase (Release 1)

Organisms	Total circRNAs	Back-splicing site validated	Full length sequence validated	Acting as miRNA sponge	Networks of circRNA-miRNA-mRNA
Oryza sativa	40,314	137	70	901	539
Arabidopsis thaliana	35,884	25	0	955	792
Zea mays	496	0	0	1	1
Hordeum vulgare	47	16	0	0	0
Solanum lycopersicum	854	0	0	4	3

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