Table IV.

Examples of genes showing different expression levels in the flavedo of wild-type or nan stay-green mutant fruits at the ripe stage (248 DPA), as determined with a citrus microarray, highlighting those associated with oxidative stress, chloroplast function, or senescence

References describing such an association for the Arabidopsis ortholog of the citrus gene are indicated. Differences in gene expression of at least 2-fold (P ≤ 0.001) in each of three replicates were considered to be statistically significant.

Functional Class	Best BLAST Hit	Higher Expression		Citrus EST Accession No.	Arabidopsis Ortholog	Related References
		Wild Type	nan
Primary metabolism	Trp synthase		X	CX291092	At5g54810	Zhao et al. (1998)
Photosynthesis, light signaling	Lhcb2 protein		X	CX200280	At2g05100	Kimura et al. (2003)
ROS, redox	Cytochrome bf6 complex subunit		X	CX37372	At2g26500	Kimura et al. (2003)
	GST1		X	CX301042	At2g30860	Rossel et al. (2002)
	GST6	X		CX288839	At2g47730	Rossel et al. (2002)
	Peroxidase	X		CX308204	At4g21960	Wong et al. (2006)
	Ascorbate oxidase	X		CX289525	At5g21100	Yamamoto et al. (2005)
Phenylpropanoids	Isoflavone reductase-like		X	CX308502	At4g39230
	Flavonol 3′-O-methyltransferase		X	CX289068	At5g54160	Kimura et al. (2003)
Polyamines	SAM decarboxylase		X	CX289919	At3g25570	Guo et al. (2004)
Isoprenoids, carotenoids	Geranylgeranyl diphosphate synthase		X	CX290062	At3g14510
Salicylic acid	SAM-dependent methyltransferase		X	CX308455	At3g11480	Chen et al. (2003)
Jasmonic acid	Lipoxygenase (LOX3)		X	CX288539	At1g17420	Mahalingam et al. (2005)
Ethylene	ACC oxidase		X	CX292573	At1g05010	Gadjev et al. (2006)
Defense	Chitinase	X		CX291879	At3g12500	Bray (2002)
Miscellaneous	Miraculin	X		CX306063	At1g17860	Rizhsky et al. (2004)
	Cys protease (SAG12)		X	CX287658	At5g45890	Guo et al. (2004)
	Glycosyltransferase		X	CX288595	At3g11340	Gadjev et al. (2006)
	Glu decarboxylase		X	CX288553	At5g17330
	Vacuolar processing enzyme		X	CX287419	At4g32940	Gepstein et al. (2003)