Kroger and Albertsons Tuesday released a list of 579 stores that would be sold off under a proposed mega-merger of the grocery giants, including 63 locations in California.

The vast majority of the California locations are in Southern California.

The merger is being challenged by the Federal Trade Commission, which claims the proposed $24.6 billion merger would lead to higher grocery prices through a reduction in marketplace competition, and also potentially negatively affect workers.

Kroger has denied such claims, insisting that no stores, distribution centers or manufacturing facilities would be closed, and claiming that "customers will benefit from lower prices and more choices" through the merger.

The United Food and Commercial Workers union, which represents grocery workers, issued a statement Tuesday saying it continues to oppose the merger.