Mixed stage embryos, imaginal disks, and adult heads were used as a source for RNA.
All clones are from a random primed, normalized library from mixed stage embryos, imaginal disks, and adult heads.
Clones with EK designations were selected for initial sequencing. Those with EP designations are a subset of clones that were sequenced from the 3' end. These were clones that did not initially overlap other contigs and where the 5' end did not read into vector (i.e. inserts >~500bp).
The Exelixis ESTs were submitted to GenBank by the BDGP on behalf of Exelixis.