Table 1.

Number of transformants and number of strains with correct integrations obtained during transformation efficiency testing of the HSVtk fusion markers compared to their HSVtk-less (resistance gene only) controls.

	HSVtk-nptII	nptII	HSVtk-nat1	nat1	HSVtk-hph	hph
Number of candidates	35	85	38	39	36	90
Targeted integration	7	9	16	5	6	14
% Correct	20.0%	10.6%	42.1%	12.8%	16.7%	15.6%

HSVtk-nptII and nptII: pPS45 and pPS45HL, integration locus: FGSG_02279; HSVtk-nat1 and nat1: pPS48 and pPS48HL, integration locus: FGSG_03278; HSVtk-hph and hph: pPS51 and pPS51HL, integration locus: FGSG_00348.