Whole Genome Shotgun (WGS) sequencing projects are incomplete genomes or incomplete chromosomes that are being sequenced by a whole genome shotgun strategy. The pieces of a WGS project are the contigs (overlapping reads), and they do not include any gaps. WGS projects may be annotated, but annotation is not required.
Transcriptome Shotgun Assembly (TSA) sequences are computationally assembled sequences from primary data such as ESTs, traces and Next Generation Sequencing Technologies.
Please consult WGS Submission or TSA Submission pages for more details.