The Short ITS2 Sequence Serves as an Efficient Taxonomic Sequence Tag in Comparison with the Full-Length ITS

Table 4

Comparing of the identification rates of ITS with ITS2 in genera with more than 20 species.

			Unidentified species					Unidentified species
Genus	Species	Samples			Genus	Species	Samples
			ITS	ITS2				ITS	ITS2
Acer	57	341	0.30%	0.30%	Maxillaria	245	506	0.20%	0.20%
Adenia	37	39	0.00%	2.60%	Melampodium	39	93	0.00%	1.10%
Begonia	42	71	1.40%	1.40%	Miconia	166	175	0.60%	0.60%
Calceolaria	64	64	1.60%	1.60%	Morinda	20	24	0.00%	0.00%
Caragana	28	39	2.60%	2.60%	Muraltia	67	67	1.50%	1.50%
Carex	73	80	1.30%	1.30%	Nepeta	31	31	0.00%	3.20%
Castilleja	21	21	4.80%	4.80%	Nicotiana	31	43	2.30%	2.30%
Cineraria	20	23	4.30%	4.30%	Oncidium	76	92	1.10%	1.10%
Clidemia	39	40	0.00%	2.50%	Oxalis	168	185	0.50%	0.50%
Cliffortia	30	33	3.00%	3.00%	Panicum	29	39	2.60%	2.60%
Clusia	26	63	1.60%	1.60%	Paphiopedilum	39	55	1.80%	1.80%
Coffea	79	106	0.90%	0.90%	Pentas	26	27	3.70%	3.70%
Costus	45	75	1.30%	1.30%	Phyllanthus	64	82	1.20%	1.20%
Crinum	27	27	3.70%	3.70%	Pilea	63	66	0.00%	1.50%
Croton	45	45	2.20%	2.20%	Planchonella	37	42	2.40%	2.40%
Cuscuta	44	69	1.40%	1.40%	Plantago	68	88	1.10%	1.10%
Cyrtochilum	32	42	2.40%	2.40%	Poa	44	56	1.80%	1.80%
Dichaea	34	58	1.70%	1.70%	Potentilla	31	32	3.10%	3.10%
Dionysia	35	37	0.00%	2.70%	Pouteria	24	27	0.00%	0.00%
Disterigma	20	24	4.20%	4.20%	Rhodiola	20	47	2.10%	2.10%
Draba	122	273	0.40%	0.40%	Rhus	21	28	3.60%	3.60%
Elymus	35	98	1.00%	1.00%	Ruellia	98	116	0.90%	0.90%
Epimedium	20	23	4.30%	4.30%	Salix	25	33	3.00%	3.00%
Ficus	147	152	0.70%	0.70%	Salvia	62	124	0.80%	0.80%
Fritillaria	38	38	2.60%	2.60%	Sauropus	31	37	0.00%	0.00%
Gagea	72	141	0.70%	0.70%	Scaevola	42	48	2.10%	2.10%
Garcinia	43	92	1.10%	1.10%	Scaphyglottis	34	41	0.00%	0.00%
Gomesa	44	51	2.00%	2.00%	Sedum	54	56	0.00%	1.80%
Gunnera	20	20	0.00%	5.00%	Selago	21	22	4.50%	4.50%
Hoya	32	81	1.20%	1.20%	Senecio	76	89	1.10%	1.10%
Indigofera	52	63	0.00%	1.60%	Sideroxylon	42	42	2.40%	2.40%
Kalanchoe	49	67	0.00%	1.50%	Silene	20	28	3.60%	3.60%
Kniphofia	51	96	1.00%	1.00%	Stevia	71	91	1.10%	1.10%
Leandra	26	26	3.80%	3.80%	Strobilanthes	29	29	0.00%	3.40%
Leontodon	22	31	3.20%	3.20%	Swartzia	22	30	0.00%	0.00%
Luzula	25	29	0.00%	3.40%	Taraxacum	27	215	0.50%	0.50%
Macaranga	38	38	2.60%	2.60%	Tiquilia	27	303	0.30%	0.30%
Macrocarpaea	46	81	1.20%	1.20%	Tolumnia	21	23	4.30%	4.30%
Mallotus	29	33	0.00%	0.00%	Trifolium	222	257	0.40%	0.40%
Masdevallia	34	34	2.90%	2.90%	Veronica	132	153	0.70%	0.70%