Table 1.

Transposition efficiencies of mini-Tn7 constructs

Recipient strain	Mini-Tn7	Frequencya
R. etli CFN42 (Ret)	Tn7pleD*	3,0 x 10−4
	Tn7pleD*Km	6,5 x 10−6
	Tn7Km	5,2 x 10−6
	Tn7pleD*Tc	9,8 x 10−8
	Tn7Tc	5,1 x 10−6
R. leguminosarum bv. viciae UPM791 (Rle)	Tn7pleD*Km	2,5 x 10−8
	Tn7Km	4,8 x 10−8
	Tn7pleD*Tc	<10−9
	Tn7Tc	1,8 x 10−9
S. meliloti 8530 (Sme)	Tn7pleD*Km	4 x 10−8
	Tn7Km	8 x 10−8
	Tn7pleD*Tc	3,5 x 10−9
	Tn7Tc	2,3 x 10−8
P. syringae pv. tomato DC3000 (Pto)	Tn7pleD*Km	1,6 x 10−7
	Tn7Km	4,8 x 10−5
	Tn7pleD*Tc	7 x 10−8
	Tn7Tc	2 x 10−5

^aMini-Tn7 frequency of transposition expressed as the number of transposants per input receptor cell