She takes on the ad sales operation for the Daily Mirror, Sunday Mirror and The People, replacing Neil Hurman, who left in August after three years with the company. Hurman joined from Leagas Delaney, where he was the media director.
Dove will report to Ellis Watson, the general manager of MGN, who has been overseeing ad sales since Hurman's departure.
Her appointment concludes a complete overhaul of MGN's national newspaper titles instigated by the Trinity Mirror chief executive, Sly Bailey. Bailey worked with Dove during her tenure as the chief executive of IPC.
Bailey ordered a review of MGN's operation after she took over in February.
In August, she said she aimed to achieve cost savings of £25 million by 2005. Among other senior figures to depart were Mark Haysom, the managing director of Mirror Group, and its marketing director, Alisdair Luxmoore.
At IPC Southbank, the company's largest division, 36-year-old Dove was responsible for 17 titles including Marie Claire, Homes & Gardens, Woman & Home and InStyle. Before being promoted to group ad director of IPC Southbank, she was the acting ad director for the company's fashion group.
Dove will join MGN at the beginning of 2004.