Table 2.

Gene-trait matching with functions resulting from hierarchical clustering analysis

Carbohydrate	Gene cluster	Functions
XYLO-OLIGOSACCHARIDES (XOS)	A	Hypothetical protein
		Putative outer membrane protein
		Galactoside O-acetyltransferase
		Alpha-L-arabinofuranosidase
		Beta-1,4-xylosidase
		ABC transporter permease
		ABC transporter permease
		Lactose ABC transporter substrate-binding protein
		LacI family transcriptional regulator
		NADH-dependent butanol dehydrogenase 1
ARABINAN	B	Endo-1,4-beta-xylanase
		Endo-1,4-beta-xylanase
		Beta-xylosidase
		Endo-1,4-beta-xylanase
ARABINOXYLAN	C	ABC transporter, permease protein, probably fructooligosaccharide porter
		ABC transporter, permease protein, probably fructooligosaccharide porter
		ABC transporter, extracellular SBP, probably fructooligosaccharide porter
		Exo-alpha-L-arabinofuranosidase II
		Lipase
		LacI family transcriptional regulator
		Beta-xylosidase
		Beta-xylosidase
		Beta-xylosidase o endo-arabinase
		Alpha-arabinofuranosidase I
GALACTAN	D	Solute-binding protein of ABC transporter system for sugars galactan metabolism
		ABC transporter permease
		ABC transporter permease
		Beta-galactosidase galactan metabolism
		Transcriptional regulator LacI family galactan metabolism
		Glycosyl hydrolases family 53 Endogalactanase galactan metabolism
		2,5-diketo-D-gluconic acid reductase
FUCOSYLLACTOSE (FL)	E	LacI family transcriptional regulator
		putative ABC transporter permease
		ABC transporter permease
		ABC transporter substrate binding component
		Mandelate racemase/muconate lactonizing protein
		Short chain dehydrogenase
		Hypothetical protein
		Dihydrodipicolinate synthase
		Predicted fucose isomerase
		Alpha-1,3/4-fucosidase
		Hypothetical protein (Glycosyl hydrolases family 95)

Glycosyl hydrolases involved in carbohydrate utilization of each cluster are italicized