Table 2 Expression stability ranking of the candidate reference genes according to BestKeeper, NormFinder, geNorm, Delta CT and RefFinder analyses.

From: Selection and validation of reference genes suitable for gene expression analysis by Reverse Transcription Quantitative real-time PCR in Acinetobacter baumannii

Ranking

BestKeeper

NormFinder

geNorm

Delta CT

RefFinder

Gene

SD value

Gene

Stability value

Gene

M value

Gene

Average of SD

Gene

Geomean of ranking values

1

fabD

0.484

rpoB

0.315

rpoB/rpoD

0.519

rpoB

0.923

rpoB

1.41

2

rpoD

0.522

rpoD

0.430

rpoB/rpoD

0.519

fabD

0.943

rpoD

1.86

3

groEL

0.55

fabD

0.448

fabD

0.559

rpoD

0.968

fabD

2.06

4

rpoB

0.60

gyrA

0.465

gyrA

0.671

gyrA

0.971

gyrA

4.23

5

gyrA

0.645

gapA

0.751

gapA

0.738

gapA

1.092

gapA

5.44

6

rho

0.748

proC

0.804

proC

0.787

proC

1.138

proC

6.64

7

gapA

0.814

rho

0.812

rho

0.857

rho

1.169

rho

6.74

8

atpD

0.898

atpD

1.016

atpD

0.928

atpD

1.284

groEL

6.84

9

proC

0.986

groEL

1.069

groEL

0.996

groEL

1.327

atpD

8.0

10

16S

1.534

16S

1.711

16S

1.166

16S

1.845

16S

10.0