Endangered Uyghur Medicinal Plant Ferula Identification through the Second Internal Transcribed Spacer

Table 1

ITS2 sequence characteristics and K2P distances of Ferula used in this research.

Species	Sample number	GC content (%)	Sequence length (bp)	Distinctive variable site	Interspecific K2P distance (mean)
F. sinkiangensis	13	55.0	451	7	0.009–0.163 (0.030)
F. fukanensis	6	54.7	455	0	0.002–0.161 (0.027)
F. ferulaeoides	14	54.6	454	0	0.002–0.150 (0.023)
F. soongarica	6	54.4	454	1	0.002–0.154 (0.025)
F. caspica	11	54.3	455	3	0.009–0.161 (0.030)
F. lehmannii	5	54.9	455	0	0.002–0.157 (0.028)
F. syreitschikowi	10	54.3	455	3	0.007–0.145 (0.028)
F. akitschkensis	4	56.2	452	53	0.145–0.170 (0.156)
F. dubjanskyi	3	53.6	455	5	0.016–0.151 (0.035)
F. litwinowiana	2	54.9	455	4	0.007–0.170 (0.033)