Table 1

Experimental differences in original circadian microarray analyses

Publication

% Circadian

Number of time points

Light intensity (μmol/m2 per second)

Microarray platform

Technical replicates

Low-level analysis

Circadian detection algorithm

Presence cut-off


Harmer and coworkers [4]

5.5

12

60

Affymetrix Arabidopsis Genome

2

Affymetrix MAS 4.0

CORRCOS

None

Edwards and coworkers [6]

15.4

13

60 to 65

Affymetrix Arabidopsis ATH1

N/A

GC-RMA

COSOPT (less stringent)

None

Covington and Harmer [7]

10.4

12

120

Affymetrix Arabidopsis ATH1

N/A

dChip

COSOPT (more stringent)

Genes present in ≥ 4 of 12 samples


Covington et al. Genome Biology 2008 9:R130   doi:10.1186/gb-2008-9-8-r130

Open Data