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Table 2 Primers and amplification conditions

From: Multilocus genetics to reconstruct aeromonad evolution

Locus

Function

Putative gene product

Gene sizea(bp)

Locus positiona(bp)

Primerb

Primer sequence 5’-3’

Sequence length amplified (alignment length) (bp)

Amplification conditions

dnaK

Stress response

Heat shock 70 kDa protein (HSP 70)

1,928

3357741

DnaK-F

DnaK-R

ATGAAGAAGACCGCCGAAG

TGCAGCACGTGAATGGTC

816

(816)

45s at 94°C;

45s at 63°C;

45s at 72°C

gltA

Glycolytic pathway

Type II citrate synthase

1,286

2098162

GltA-F

GltA-R

TTCCGTCTGCTCTCCAAGAT

GCAGCGGATCCTTGATCT

462

(462)

45s at 94°C;

45s at 63°C;

45s at 72°C

gyrB

Replication

Subunit DNA gyrase

2,411

3883

GyrB3F

GyrB14R

(Yáñez, 2003)

783-786

(792)

45s at 94°C;

45s at 65°C;

45s at 72°C

radA

DNA repair

DNA repair protein, RadA

1,364

4108941

RadA-F

RadA-R

ATGCATCACCTGGATGGAGT

TGCCTATGTTTGTACCGAATG

405-414

(420)

45s at 94°C;

45s at 60°C;

45s at 72°C

rpoB

Transcription

DNA-directed RNA polymerase β subunit

4,091

4466890

Pasrpob-L

Rpob-R

(Korczak, 2004)

426

(426)

45s at 94°C;

45s at 65°C;

45s at 72°C

tsf

Protein translation

Elongation factor Ts

881

1272267

Tsf-F

Tsf-R

CGCTGGCATGATGGATTG

GATGCCTTCGCCCACTTC

702

(702)

45s at 94°C;

45s at 65°C;

45s at 72°C

zipA

Cell division

Cell division protein ZipA

1,112

1337458

ZipA-F

ZipA-R

TTGCGTTACATCTTGGTTGC

ATCCGGTACGGATTGAAGGT

429-507

(537)

1min at 94°C;

45s at 55°Cc;

1min at 72°C

  1. aGene start codon position on the circular chromosome sequence of A. hydrophila subsp. hydrophila ATCC 7966T (accession number NC_008570).
  2. bF, forward primer; R, reverse primer.
  3. cSome strains belonging to A. caviae and A. media clades were amplified using a 4 mM MgCl2 concentration and a primer hybridization temperature of 50°C (A. caviae).