Technical Abstract: The United States Department of Agriculture, Agricultural Research Service, announces the release of onion inbred ‘B8667 A&B’ and synthetic population ‘Sapporo-Ki (SKI) -1 A&B’. Both of these releases represent a cytoplasmic male-sterile (A) line with its maintainer (B) for seed propagation of male-sterile plants. B8667 A&B is intended for production of red, long-day, well-storing hybrids. SKI-1 combines the earliness of the Japanese population Sapporo-Ki with maintenance of cytoplasmic male sterility. The long-day synthetic population ‘Onion Haploid-1’ (OH-1) is a joint release of the United States Department of Agriculture, Agricultural Research Service, and the University of Ljubljana, Slovenia. OH-1’ is intended to serve as a responsive control for extraction of gynogenic haploids of onion.