Table 1.

Studies showing the genome-wide identification of circRNAs in plants.

No	Year	Publication Details and Reference No.	Plant species	Number of circRNAs	Tissues/Developmental Stages	Approach	Stimuli/Biological Process
							Abiotic Stress	Biotic Stress
1	2015	Ye et al., 2015	Oryza sativa	12,037	Roots and shoots the following time	rRNA-depleted RNA-Seq	Pi-starvation
		New Phytol.	(Rice)
2	2015	Lu et al., 2015	Oryza sativa	2,354	Panicles and mature leaves at the flowering time	rRNA-depleted/RNase R-treated RNA-Seq
		RNA	(Rice)
3	2017	Ye et al., 2017	Oryza sativa	2,806	Roots of seedlings	rRNA-depleted/RNase R-treated RNA-Seq
		RNA Biol.	(Rice)
4	2015	Ye et al., 2015	Arabidopsis thaliana	6,012	Leaves of 3–4 weeks old plants	rRNA-depleted RNA-Seq	Light
		New Phytol.
5	2016	Sun et al., 2016	Arabidopsis thaliana	970	NA	rRNA-depleted RNA-Seq
		FEBS
6	2016	Darbani et al., 2016	Hordeumvulgare	47	Leaves and immature seeds at the growth stage 18 ± 2 days after anthesis	rRNA-depleted RNA-Seq
		Frontiers in Plant Science	(Barley)
7	2016	Zuo et al., 2016	Solanumlycopersicum	854	Mesocarp samples at mature green stage	rRNA-depleted RNA-Seq	Chilling
		BBRC	(tomato)
8	2017	Wang et al., 2017	Triticum aestivum	88	Leaves of seedlings	rRNA-depleted/RNase R-treated RNA-Seq	Dehydration
		Frontiers in Plant Science	(Wheat)
9	2017	Zhao et al., 2017b	Soybean	5,367	Leaves at mature green stage	rRNA-depleted RNA-Seq		Cotton bollworm
		OCS
10	2017	Wang et al., 2017	Kiwifruit	3,582	Leaf, root, and stem tissues of seedlings	rRNA-depleted RNA-Seq		Pseudomonas syringae pv. actinidiae
		Frontiers in Plant Science
11	2017	Zhao et al., 2017a	Soybean	5,372	Leaf, root, and stem tissues of seedlings	rRNA-depleted RNA-Seq
		Sci. Rep.
12	2017	Tan et al., 2017	Solanumlycopersicum	796	Fruits	rRNA-depleted RNA-Seq
		Sci. Rep.	(tomato)
13	2018	Chen et al., 2018	Maize	2804	B73 seedling leaves	rRNA-depleted RNA-Seq
		New Phytol.