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Table 4 Transfer frequency of self-transmissible and symbiotic plasmids a

From: The conjugative plasmid of a bean-nodulating Sinorhizobium fredii strain is assembled from sequences of two Rhizobium plasmids and the chromosome of a Sinorhizobiumstrain

Donor

Relevant genotype

Transfer Frequencyb

  

STPc

pSym

CFN42

wild type R. etli

10-2

10-6

CFNX195

CFN42 derivative: pRet42a-, pRet42d::Tn5mob

-d

NDe

GR64

wild type S. fredii

10-1

10-4

GR64-2

GR64/pSfr64a-, pSfr64b::Tn5mob

-

ND

GR64-3

GR64-2/pRet42a::Tn5-GDYN

ND

ND

GR64-5

GR64/pSfr64a-, pSfr64b-, pRet42a::Tn5-GDYN

ND

-

GR64-6

GR64/pSfr64a-, pSfr64b-, pSfr64a::Tn5-GDYN

10-1

-

CFN2001-1

CFN2001/pSfr64b::Tn5mob

-

ND

CFN2001-2

CFN2001-1/pRet42a::Tn5-GDYN

10-4

10-6

CFN2001-3

CFN2001-1/pSfr64a::Tn5-GDYN

ND

ND

  1. a Strain GMI9023 was used as receptor. All crosses were repeated at least three times.
  2. b Expressed as the number of transconjugants per donor.
  3. c STP: Self Transmissible Plasmid
  4. d Not done
  5. e not detected (transfer frequency <10-9).