Integrated Analysis for Identifying Radix Astragali and Its Adulterants Based on DNA Barcoding

Table 5

Analysis of interspecific divergence and intraspecific variation for six barcodes.

Marker (Mean ± SD)	COI	ITS2	ITS	matK	rbcL	psbA-trnH
Theta	2.2260 ± 6.2961	0.0030 ± 0.0046	0.0271 ± 0.0404	0.0021 ± 0.0035	0.0011 ± 0.0020	0.2415 ± 0.4777
Coalescent depth	0.0001 ± 0.0004	0.0040 ± 0.0046	0.1423 ± 0.3958	0.0032 ± 0.0050	0.0016 ± 0.0030	0.4109 ± 0.5683
All intraspecific distance	9.3280 ± 0.0003	0.0021 ± 0.0024	0.1153 ± 0.3051	0.0014 ± 0.0022	0.0002 ± 0.0011	0.3093 ± 0.4300
Theta prime	0.0012 ± 0.0008	0.0617 ± 0.0302	0.0603 ± 0.0371	0.0091 ± 0.0061	0.0024 ± 0.0035	0.3083 ± 0.2887
Minimum interspecific distance	0.0008 ± 0.0010	0.0440 ± 0.0386	0.0168 ± 0.0196	0.0066 ± 0.0066	0.0023 ± 0.0035	0.0423 ± 0.0380
All interspecific distance	0.0007 ± 0.0010	0.0343 ± 0.0389	0.1066 ± 0.2833	0.0071 ± 0.0064	0.0015 ± 0.0029	0.3166 ± 0.4070
Gap rate/%	87.50	90.91	/	51.52	30.43	/