Functional study of CHS gene family members in citrus revealed a novel CHS gene affecting the production of flavonoids

Table 1 Pearson’s correlation coefficients between gene expression and flavonoid accumulation in four tissues of young seedlings based on time point T0-T5

		FV + FVL	FN + FNL	TF	CHS1	CHS2	CHS3
Root	CHS1	−0.18 ^NS	−0.5 ^NS	0.77^***
	CHS2	0.39^***	0.19 ^NS	0.48^***	0.67^***
	CHS3	0.52^***	0.26 ^NS	0.67^***	0.64^***	0.6^***
	CHSs	0.45^***	0.2 ^NS	0.59^***	0.75^***	0.96^***	0.79^***
Cotyledon	CHS1	−0.54 ^NS	0.11 ^NS	0.05 ^NS
	CHS2	−0.01 ^NS	0.49^***	0.52^***	−0.37 ^NS
	CHS3	−0.02 ^NS	0.62^***	0.65^***	0.03 ^NS	0.5^***
	CHSs	−0.31 ^NS	0.58^***	0.58^***	0.38^***	0.59^***	0.85^***
Stem	CHS1	0.46^***	0.29 ^NS	0.34^***
	CHS2	0.45^***	0.45^***	0.8^***	0.01 ^NS
	CHS3	−0.09 ^NS	0.44^***	0.34^***	−0.53 ^NS	0.76^***
	CHSs	0.42^***	0.86^***	0.79^***	0.07 ^NS	0.99^***	0.75^***
Leaf	CHS1	0.01 ^NS	−0.85 ^NS	−0.77 ^NS
	CHS2	−0.64 ^NS	0.01 ^NS	0.59^***	−0.31 ^NS
	CHS3	−0.07 ^NS	0.05 ^NS	0.39^***	−0.16 ^NS	0.78^***
	CHSs	−0.39 ^NS	−0.05 ^NS	0.48^***	−0.16 ^NS	0.94^***	0.94^***

Note: FV + FVL, Flavones and flavonols; FN + FNL, Flavanones and flavanonols; TF, Total flavonoids; CHSs, total CHS; CHS1, CitCHS1; CHS2, CitCHS2; and CHS3, CitCHS3
NS=Not significantly different at P < 0.05; *** = Significant at P < 0.001

ISSN: 1471-2229