Early closure for Parton musical

The show had previously been taking bookings until the end of the year

Broadway musical 9 to 5, based on the 1980 Dolly Parton film, is to close on 6 September after a five-month run.

No reason has been given for its early exit from New York's Marquis Theatre, where the show opened in April.

However, industry insiders have cited a combination of high operating costs and declining ticket sales.

In a statement, Parton - who wrote the show's score - said that she "couldn't have asked for a better experience on my first Broadway show".

"I've had the privilege of working with an amazing group of people who have become like family to me."

A national tour is expected to begin in September 2010 at the Tennessee Performing Arts Center in Nashville.

'Great things'

Following a short run in Los Angeles last year, 9 to 5 opened in April with a cast headed by The West Wing's Allison Janney.

The show failed to impress the critics, though, and did not win any of the four Tony Awards for which it was nominated in June.

Parton remains upbeat about the musical, based on the 1980 film in which she, Jane Fonda and Lily Tomlin played working women who take revenge on a tyrannical boss.

"I can't wait for this show to hit the road so people across the country can see why I'm so proud of everyone involved," she said in a statement.

"I'm so pleased that we'll be opening the tour in Nashville," Parton added. "Great things happen in Nashville."