Table 2

Results of the simple and multiple linear regression analyses

Explanatory variable(s)

Data Source

r2

p

Coefficient


Methylation frequency

[24,25]

0.8

<2E-16

n.r.

0.8

<2E-16

n.r.


Frequency of genes target of H3k27me3

[30]

0.12

0.000207

n.r.


Gene size

TAIR Genome v6.0

0.02

>0.01

n.r.


Cis-acting elements

[48]

0.05

>0.01

n.r.


TATA-box frequency

(MotifSearch, [26])

(PlantProm, [26])

0.49

0.68

<2E-16

<2E-16

n.r.

n.r.


Methylation + TATA-box

[24]+ (MotifSearch, [26])

0.84

<2E-16a

0.0002b

-201.5a

35b


[24] + (PlantProm, [26])

0.86

<2E-16a

1.00E-09b

-168a

50.5b


[25] + (MotifSearch, [26])

0.87

2.00E-16a

5.00E-09b

-158.6a

54.8b


[25] + (PlantProm, [26])

0.84

<2E-16a

0.0006b

-194.3a

39b


Column 1 reports the explanatory variables used to model gene responsiveness. Column 2 indicates the source of the data (reference). Columns 3 and 4 report the different statistics obtained with the linear regression. n.r., not reported; n.d., not determined. a, statistics for methylation variable. b, statistics for TATA-box variable. Column 5 shows the coefficients from the linear regression analysis.

Aceituno et al. BMC Genomics 2008 9:438   doi:10.1186/1471-2164-9-438

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