TABLE 5.

Population similarity P values for comparison of nirK and nirS clone libraries determined using the Cramer-von Mises test statistic, implemented in ∫-LIBSHUFF^a

Gene (n)	Site for homologous library (X)	P value for comparison of heterologous library (Y) with Xb
		R89	R97	R00	R01	R03
nirK (158)	R89		0.036	0.000	0.000	0.000
	R97	0.400		0.000	0.000	0.000
	R00	0.000	0.000		0.000	0.000
	R01	0.000	0.000	0.040		0.957
	R03	0.000	0.000	0.000	0.304
nirS (117)	R89		0.421	0.000	0.000	0.000
	R97	0.125		0.040	0.000	0.000
	R00	0.000	0.210		0.056	0.000
	R01	0.000	0.000	0.269		0.000
	R03	0.000	0.000	0.000	0.000

^aSee reference 27.

^bBoldface values indicate significant P values (P < 0.0026) after Bonferroni correction for multiple pairwise comparisons. Libraries are distinct from one another if either of the comparisons (X versus Y and Y versus X) is significant (30).