Table 5.

Key niche-specific genes in Yersinia

	cbi	pdu	ttr	eut	hyd-2	hyd-4	ure	mtn	opg
Y. enterocolitica	+	+	+	-	+	+	+	+	+
Y. aldovae	+	+	-	-	+	+	+	+	+
Y. bercovieri	+	+	+	eutABC	+	+	+	+	+
Y. frederiksenii	+	+	+	-	+	+	+	+	+
Y. intermedia	+	+	+	eutSPQTDMNEJGHABCLKR	+	+	+	+	+
Y. kristensenii	+	+	+	-	+	+	+	+	+
Y. mollaretii	+	+	-	eutABC	+	+	+	+	+
Y. rohdei	+	-	+	-	+	+	+	+	+
Y. ruckeri	-	-	-	-	+/- hyfABCGHINfdhF	+/- (hyaD, hypEDB)	-	-	+
Y. pseudotuberculosis	-	-	-	-	-	-	+	+	+
Y. pestis	-	-	-	-	-	-	+/-	-	-

Abbreviations: cbi, cobalamin (vitamin B12) biosynthesis; pdu, 1,2-propanediol utilization; ttr, tetrathionate respiration; eut, ethanolamine degradation; hyd-2 and hyd-4, hydrogenases 2 and 4, respectively; ure, urease; mtn, methionine salvage pathway; opg, osmoprotectant (synthesis of periplasmic branched glucans).