1) germline/gene silencing (Kelly et al 1997; Reviewed in Seydoux and Schedl 2001),

2) absence of promoter::GFP in the heritable arrays,

3) conditional gene expression (environmental, male, dauer etc.),

4) failure to capture the entire transcription control element,

5) the promoter is within an operon, etc.

Therefore, the following list is merely useful as a comparison baseline for other projects when they use these promoter regions. No conclusions can be drawn from this data.