TABLE 2.

Summary of effects of SPO1 strains^a

SPO1 strain	Transcription			Host synthesis
	Immediate- early genes	Delayed- early genes	Middle genes	RNA	DNA
					At early times	At middle times
WT	+	++	++	−	−	−−−
44−	++	+++	+++	−−	−−	−−−
50−51−	++	+++	+++	−−	−−	−−−
44−50−51−	++++	++	+	−−−	−−	−−

^aPluses and minuses show the direction and relative amount of the effect of each SPO1 strain on each of the processes listed. They represent crude approximations, since there is considerable variation within each class of genes. WT, wild type.