TOKYO, April 6 (Xinhua) -- Tokyo stocks ended lower in choppy trade on Friday as despite support from a weaker yen in early trade providing support, fresh jitters about U.S. trade issues led to a circumspect market mood.

The 225-issue Nikkei Stock Average dropped 77.90 points, or 0.36 percent, from Thursday to close the day at 21,567.52.

The broader Topix index of all First Section issues on the Tokyo Stock Exchange, meanwhile, lost 5.31 points, or 0.31 percent, at 1,719.30.

Air transportation, pulp and paper, and marine transportation comprised those that declined the most by the close of play.