CHELSEA, Mass. — Whole Foods Market Inc. has purchased six leases from Johnnie’s Foodmaster, a family-owned grocery chain based here. The transaction is expected to close November 30. Terms were not disclosed. Johnnie’s will shutter all six locations prior to the closing date.

Whole Foods Market Inc. has purchased six leases from Johnnie’s Foodmaster, a family-owned grocery chain based here. The transaction is expected to close November 30. Terms were not disclosed. Johnnie’s will shutter all six locations prior to the closing date.

The six stores are in South Weymouth, Arlington, Charlestown, Brookline, Melrose and Somerville, Mass., and they average 31,000 square feet. Whole Foods intends to remodel each unit, with the goal of reopening all six before the end of its 2013 fiscal year in September. The company does not expect the transaction to be material to fiscal 2013 sales or earnings.

"We are looking to expand our presence in greater Boston," said Laura Derba, president of Whole Foods’ North Atlantic region.

The company has guaranteed interviews to all Johnnie’s employees at the six acquired locations.