Natural Genomic Design in Sinorhizobium meliloti: Novel Genomic Architectures

Table 1.

Quantification of Structures Resulting From Cointegration and Excision Events in the Cultures of Wild-Type S. meliloti 1021 and Its Derivative Strains


Event

Sitea

Primersa

Control strain

Test strain

nb

Fc
Cointegration of pSymA,pSymB a 1-6 CFNX601 wild type 12 2.4 × 10-4
a 2-5 CFNX601 wild type 13 1.2 × 10-4
b 3-8 CFNX603 wild type 12 2.4 × 10-4
b 4-7 CFNX603 wild type 13 1.2 × 10-4
Excision from CFNX601 a 1-2 wild type CFNX601 10 1 × 10-3
a 5-6 wild type CFNX601 10 1 × 10-3
b 3-8 CFNX603 CFNX601 12 2.4 × 10-4
b 4-7 CFNX603 CFNX601 13 1.2 × 10-4
Excision from CFNX603 a 1-6 CFNX601 CFNX603 12 2.4 × 10-4
a 2-5 CFNX601 CFNX603 12 2.4 × 10-4
b 3-4 wild type CFNX603 10 1 × 10-3

b
7-8
wild type
CFNX603
10
1 × 10-3
  • a Site of event and position of the primers are shown schematically in Fig. 4. The sequence and location of the primers are given in Methods

  • b “n” represents the difference in the number of cycles necessary to obtain the same amount of PCR product between the test and the control (see Methods). n values are the mean of four independent measurements

  • c “F” represents the relative concentration of rearranged structures in the culture (see Methods)

This Article

  1. Genome Res. 13: 1810-1817

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