3GT	anthocyanin 3-O-glucosyltransferase
5GT	anthocyanin 5-O-glucosyltransferase
a*, b*	chromatic components
ANS	anthocyanin synthase
AOMT	anthocyanin O-methyltransferase
Ap	apigenin
bHLH	basic helix-loop-helix
C*	chroma (brightness)
CHI	chalcone isomerase
CHS	chalcone synthase
CI	Co-pigment index
COG	Cluster of orthologous groups of proteins database
Cy3G	cyanidin 3-O-glucoside
Cy3G5G	cyaniding 3,5-di-O-glucoside
DEGs	differentially expressed genes
DFR	dihydroflavonol 4-reductase
F3’H	flavonoid 3’-hydroxylase
F3H	flavanone 3-hydroxylase
FDR	false discovery rates
FLS	flavonol synthase
FPKM	fragments per kilobase per million mapped reads
GO	gene ontology
GST	glutathione S-transferase
HPLC	hogh-performance liquid chromatography
Is	isorhamnetin
KEGG	Kyoto encyclopedia of genes and genomes database
Km	kaempferol
KOG	euKaryotic orthologous groups
L*	lightness
Lu	luteolin
Nr	Non-resundant protein database
PAL	phenylalanine ammonia-lyase
Pfam	protein family
Pn3G	peonidin 3-O-glucoside
Pn3G5G	peonidin 3,5-di-O-glucoside
qRT-PCR	quantitative reverse transcription PCR
Qu	quercetin
R	pearson’s correlation coefficient
RHSCC	Royal horticultural society colour chart
SwissProt	SwissProt protein database
TA	total anthocyanin
TF	total flavone and flavonol in mg/100 mg dry petals.