The question of whether the offspring of departing politicians should be allowed to run for their parents' Diet seats is gaining attention in the runup to the general election that must be held by fall.

The Democratic Party of Japan plans to prohibit candidates from seeking the Diet seats of their parents, grandparents or great-grandparents.

Members of Prime Minister Taro Aso's ruling Liberal Democratic Party are opposed to placing restrictions on candidates for the next election of the House of Representatives, whose members' four-year terms end in September.