Table 3 Species discrimination rates using three barcodes and their combinations based on three methods for native seed plants of the GBA.

From: A DNA barcode reference library of native seed plants in the Guangdong-Hong Kong-Macao Greater Bay Area

Barcodes

BM/BCM (%)

Barcoding gap

Tree-based

Correct identification

Ambiguous

Incorrect identification

gap (%)

Species identification (%)

matK

63.29

27.73

8.96

46.90

43.50

rbcL

56.20

37.38

6.42

35.72

31.89

ITS2

87.60

3.02

9.36

69.72

70.87

RM

57.99

7.34

34.66

52.13

51.41

MI2

72.68

1.48

25.82

74.40

68.80

RI2

75.29

1.73

22.96

74.22

69.58

RMI2

67.09

1.64

31.25

76.83

71.63

  1. Note: The results for Best Match (BM) and Best Close Match (BCM) were identical across all barcodes in this study; only a single set of values is presented. BM/BCM: Best Match/Best Close Match; RM: rbcL + matK; RI2: rbcL + ITS2; MI2: matK + ITS2; RMI2: rbcL + matK + ITS2.
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