Maryland gubernatorial hopeful Ronald A. George on Tuesday unveiled former Frederick alderman Shelley Aloi as his running mate, saying they represent “a new wing of the Republican Party.”

George, an Anne Arundel County delegate who owns a pair of jewelry stores, made the announcement of his lieutenant governor candidate at a news conference in Annapolis on the final day for gubernatorial tickets to file for the June primary.

Later, George registered his intent to participate in the state’s public financing system, becoming the third candidate for governor to do so in this year’s election. Candidates who participate must limit spending during the primary season to about $2.6 million. In return, the state agrees to match contributions from individuals up to $250.

Aloi, who grew up in Frederick, currently works as a banking analyst. She previously worked at Fort Detrick’s National Cancer Institute-Frederick Cancer Research Facility. She has also worked as a math and science teacher and directed an Olympic Village for seven nations in 1996.

Aloi was on the City of Frederick board of aldermen from 2009 to 2013. She was defeated in a bid for mayor last year.

“As I have watched this campaign unfold, it is clear that only one candidate has the combined private-sector experience and legislative success,” Aloi said of George.

She also praised his platform of lowering taxes and promoting business growth.

The ticket, George told supporters, represents “a new wing of the Republican Party: one that is fiscally conservative and solution-oriented, one that welcomes Democrats and independents who are searching for a new direction, one that will address the needs of all Marylanders.”

George is running in a crowded Republican primary contest. In a Washington Post poll published last week, nearly six in 10 GOP and GOP-leaning independents said they are undecided.

Larry Hogan, the leader of the watchdog group Change Maryland, had the support of 17 percent of voters, followed by Harford County Executive David R. Craig with 13 percent, Charles County businessman Charles Lollar with 10 percent and George with 4 percent.

Hogan has also agreed to participate in the public financing system, along with Del. Heather R. Mizeur (D-Montgomery), who is seeking the Democratic nomination. Others in the June gubernatorial primary include Lt. Gov. Anthony G. Brown and Attorney General Douglas F. Gansler.