Table 1. Genes associated with differences in N fixation activity between phenotypic classes of M. laminosus strains.

Analysis	Annotation (gene ID)	PFET	ΦST	DXY
55 °C	Adenylsulfate kinase (28-39736)	0.0034	0.73
	Hypothetical protein (26-13568)	0.0079
	Glycosyltransferase (1-33964)		0.57
	ATPase (49-34361)		0.53
	CoxCI; Cyt oxidase subunit 3(65-42545)		0.52
	Histidine kinase (93-42545)		0.52
	ABC transporter (77-48944)			0.0081
	UreA urease (10-32834)			0.0053
37 °C	Riboflavin reductase (43-56937)	0.0082
	Hypothetical protein (33-9029)			0.0057
Pooled	Histidine kinase (167-28586)		0.54	0.0161
	Glycine cleavage system (27-2489)	0.0057
	CoxAII; Cyt oxidase subunit 1 (21-20552)	0.0070
	ArsA ATPase (7-34642)	0.0070
	Hypothetical protein (48-37089)	0.0083
	Pleiotropic regulatory protein (84-29888)	0.0087
	Cytochrome P450 (20-24813)		0.53
	ABC transporter (77-48944)			0.0088
	Hypothetical protein (33-9029)			0.0057
	UreA urease (10-32834)			0.0056
	Hypothetical protein (93-17867)			0.0054
	Chlorophyll-binding protein (62-37089)			0.0052

Abbreviation: P_FET, Fisher's exact test P-value.