TOKYO, April 2 (Xinhua) -- Tokyo stocks opened higher Monday as a comparatively weak yen against the U.S. dollar lifted the market mood and gave exporter issues in particular a boost.

As of 9:15 a.m., the 225-issue Nikkei Stock Average added 50.58 points, or 0.24 percent, from Friday to 21,504.88.

The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, gained 3.25 points, or 0.19 percent, at 1,719.55.

Electric power and gas, insurance and electric appliance-linked issues comprised those that gained the most in the opening minutes after the morning bell.