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Table 1 Ability of F. columnare strain to receive pCP29 by conjugation with E. coli S17-1.

From: Development of methods for the genetic manipulation of Flavobacterium columnare

Strain

Results of mating attemptsa

Virulence in channel catfish

C#2

++

High

AL-203-94

++

High

Fc14-56

-

Unknown

94-060

++

High

1191-B

+

High

94-078

+

High

94-081

++

High

90-059

-

Low

L90-659

++

Low

92-002

-

Low

C91-20

++

Low

  1. aTransconjugates isolated at an efficiency equivalent to that achieved with C#2: ++; Transconjugants isolated but at low efficiency: +; no transconjugants isolated: -.