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Table 2 Tm values from Bicolor FMCA of the PRV strains used in this study

From: Duplex fluorescence melting curve analysis as a new tool for rapid detection and differentiation of genotype I, II and Bartha-K61 vaccine strains of pseudorabies virus

Name

GenBank accession no.

Tm value (°C)

ΔTm value (°C)a

Genotype

Interpretation

P1 (FAM channel)

P2 (HEX channel)

P1 (FAM channel)

P2 (HEX channel)

p-B

—

70.53

71.61

0

0

Genotype I (Bartha-K61)

reference control/plasmid

p-N

—

70.53

75.99

0

4.38

Genotype I

positive control/plasmid

p-H

—

76.88

75.98

6.35

4.37

Genotype II

positive control/plasmid

Bartha-K61

JF797217.1

70.50

71.59

-0.03

-0.02

Genotype I (Bartha-K61)

positive sample

NIA3

KU900059.1

70.28

75.96

-0.25

4.35

Genotype I

positive sample

HDDJ

MF434048

76.70

76.00

6.17

4.39

Genotype II

positive sample/field sample

GDGZ

MF434045

76.75

75.84

6.22

4.23

Genotype II

field sample

GDZQ

MF434042

76.93

76.20

6.4

4.59

Genotype II

field sample

GDHY

MF434044

77.13

76.21

6.6

4.6

Genotype II

field sample

GDHY2

MF434038

76.70

76.00

6.17

4.39

Genotype II

field sample

GDZQ2

MF434039

76.95

76.04

6.42

4.43

Genotype II

field sample

GDSD

MF434043

76.74

76.04

6.21

4.43

Genotype II

field sample

JXGZ

MF434047

76.67

75.97

6.14

4.36

Genotype II

field sample

JXGZ2

MF434036

76.63

75.93

6.1

4.32

Genotype II

field sample

LC

MF434047

76.69

75.98

6.16

4.37

Genotype II

field sample

HNCS

MF434046

76.51

75.81

5.98

4.20

Genotype II

field sample

GDHY8

MH053134

77.27

76.16

6.74

4.55

Genotype II

field sample

GDGZ2

MH053135

76.87

76.15

6.34

4.54

Genotype II

field sample

GDBL

MH053136

76.75

76.03

6.22

4.42

Genotype II

field sample

SXDT

MH053137

76.14

76.24

5.61

4.63

Genotype II

field sample

HNCS4

MH053138

76.99

76.08

6.46

4.47

Genotype II

field sample

GDHZ

MH053139

76.91

76.00

6.38

4.39

Genotype II

field sample

GDQY

MH053140

76.92

76.01

6.39

4.40

Genotype II

field sample

GDHY5

—b

70.49

71.60

-0.04

-0.01

Genotype I (Bartha-K61)

field sample

GDZQ4

—b

70.51

71.61

-0.02

0

Genotype I (Bartha-K61)

field sample

JXGZ4

—b

70.57

71.66

0.03

0.05

Genotype I (Bartha-K61)

field sample

GDSG

—b

70.56

71.61

0.03

0

Genotype I (Bartha-K61)

field sample

GDMM

—b

70.45

71.56

-0.08

-0.05

Genotype I (Bartha-K61)

field sample

GDFS

—b

70.71

71.61

0.18

0

Genotype I (Bartha-K61)

field sample

GDZS

—b

70.48

71.57

-0.05

-0.04

Genotype I (Bartha-K61)

field sample

GDQY3

—b

70.55

71.64

0.02

0.03

Genotype I (Bartha-K61)

field sample

  1. aΔTm = Tm value of detected samples minus Tm of reference plasmid p-B in each channel. bThe detected strains shared 100% identities in gC nucleotide sequence to Bartha-K61 strain (JF797217.1).