A month ago, I utilized the SRA Toolkit Pipeline to download Fastq files from a BioProject accession. Following the recommended steps, I generated a list of SRR Names, used prefetch, and then employed fasterq-dump (using parallel-fastq-dump) to obtain the data locally, resulting in fq.gz files with the corresponding SRR names.
Recently, while composing a review for my project, I attempted prefetch with the BioProject accession name. Surprisingly, it not only worked but also downloaded the files in fq.gz format, a task that prefetch supposedly cannot perform. Furthermore, it downloaded the files using the original project ID names(as used in the paper, as opposed to SRR names). I am puzzled by this unexpected behavior and would appreciate any insights into why this occurred.