Draft genome sequence of Bacillus atrophaeus X3, a pigmented subantarctic soil isolate from Magallanes Region, Chile.

Bacillus atrophaeus strain X3, isolated from subantarctic soils near Laguna Amarga, Magallanes Region, Chile, harbors a high-quality genome (three contigs, 4.08 Mb, 43.4% GC content). Its genomic sequence provides insights into cold adaptation mechanisms in the Bacillus subtilis group, with potential relevance for emerging biotechnological applications.