TABLE 2.

Decrease in gene expression and P value for the evolution of gene expression during in vitro exponential and stationary growth for each gene

Time change (min)	Decrease (P value) in expression of:
	gmk	DHFR gene	tpi	hsp-60	16S rRNA gene
45 vs 135	0.47 (0.025)	0.45 (0.003)	0.29 (0.007)	0.60 (<0.001)	1.88 (<0.001)
135 vs 225	1.54 (0.14)	1.32 (0.15)	2.44 (0.06)	1.27 (0.18)	4.65 (0.009)
225 vs 315	1.25 (0.30)	1.27 (0.30)	0.76 (0.57)	2.07 (<0.001)	1.61 (0.57)
315 vs 405	4.00 (<0.001)	2.32 (0.01)	4.39 (0.16)	6.24 (<0.001)	2.38 (0.56)
405 vs 495	2.94 (0.009)	2.73 (0.045)	1.47 (0.86)	4.67 (0.02)	1.84 (0.83)