Table 2 Expression stability of the 10 candidate reference genes calculated by NormFinder.

From: Systematic selection and validation of suitable reference genes for quantitative real-time PCR normalization studies of gene expression in Nitraria tangutorum

Rank

Salt treatment

Drought treatment

Heat treatment

Cold treatment

ABA treatment

Different organs

Total samples

Gene

Stability

Gene

Stability

Gene

Stability

Gene

Stability

Gene

Stability

Gene

Stability

Gene

Stability

1

PP2A

0.06

UBC

0.033

ACT

0.008

EF1-α

0.018

GAPDH

0.017

EF1-α

0.045

EF1-α

0.068

2

HSP

0.066

EF1-α

0.047

PP2A

0.01

CYP

0.037

His

0.041

TUA

0.053

His

0.08

3

EF1-α

0.09

GAPDH

0.061

TUA

0.024

GAPDH

0.07

PP2A

0.049

GAPDH

0.067

GAPDH

0.08

4

CYP

0.096

PP2A

0.064

GAPDH

0.03

His

0.075

EF1-α

0.049

TUB

0.073

PP2A

0.1

5

GAPDH

0.099

His

0.067

CYP

0.036

ACT

0.077

CYP

0.056

His

0.084

TUB

0.116

6

TUB

0.1

TUB

0.079

TUB

0.037

UBC

0.089

TUB

0.061

UBC

0.114

CYP

0.123

7

TUA

0.102

ACT

0.095

His

0.038

PP2A

0.094

TUA

0.095

HSP

0.136

ACT

0.132

8

His

0.106

TUA

0.142

EF1-α

0.039

TUA

0.117

ACT

0.112

CYP

0.151

TUA

0.136

9

UBC

0.108

CYP

0.156

HSP

0.133

TUB

0.159

UBC

0.115

ACT

0.157

UBC

0.139

10

ACT

0.151

HSP

0.198

UBC

0.139

HSP

0.217

HSP

0.14

PP2A

0.206

HSP

0.161