Table 4 Mutations detected in the quinolone resistance-determining regions of gyrA, gyrB, parC, parE from type strains and twenty-two Thai F. oreochromis, F. covae, F. davsii isolates

F. oreochromis

SKNRT2101

WT

-

-

-

-

-

-

F. oreochromis

UBRT2201

WT

-

-

-

-

-

-

F. oreochromis

KCRT2304

WT

-

-

-

-

-

-

F. oreochromis

RCBRT1901

NWT

Ser83Ala

-

-

-

His47Tyr

-

F. oreochromis

CNRT2201

NWT

Ser83Val

-

-

-

His47Tyr

-

F. oreochromis

KCRT2301

NWT

Ser83Phe

-

-

-

-

-

F. covae

PCBSB2203

NWT

Ser83Phe

Asp87Tyr

-

Gln458His

-

-

F. davisii

KCRT2007

WT

-

-

Asn439Ala

Gln458His

-

-

F. oreochromis

CC1802^a

-

-

-

-

-

His47Tyr

-

F. oreochromis

CC1803^a

-

-

-

-

-

His47Tyr

-

F. oreochromis

CC1805^a

-

-

-

-

-

His47Tyr

-

F. oreochromis

CC1808^a

-

-

-

-

-

His47Tyr

-

F. oreochromis

1214^a

-

Ser83Ala

-

-

-

-

-

F. oreochromis

NK01^a

-

Ser83Ala

-

-

-

His47Tyr

-

F. oreochromis

1201^a

-

Ser83Ala

-

-

-

-

-

F. covae

CF1^a

-

-

-

-

Gln458His

-

-

F. covae

1362^a

-

-

-

-

Gln458His

-

-

F. covae

1372^a

-

-

-

-

Gln458His

-

-

F. covae

SP1802^a

-

Ser83Phe

-

-

Gln458His

-

-

F. covae

SP1809^a

-

Ser83Phe

-

-

Gln458His

-

-

F. davisii

1215^a

-

Ser83Ala

-

Asn439Ala

Gln458His

-

-

F. covae

AL-02–36 ^T

-

-

-

-

Gln458His

-

-

F. davisii

90–106 ^T

-

-

-

Asn439Ala

Gln458His

-

-

F. oreochromis

Costa Rica 04–02-TN^T

-

-

-

-

-

-

-