However, QTL mapping was only studied preliminarily in a few species with middle or high density linkage maps, such as salmonids (the rainbow trout, the Atlantic salmon and the Arctic char), the tilapia, the channel catfish and the Japanese flounder.

• 然而,QTL定位研究目前只在具有中高密度遗传连锁图谱的鲑科鱼类(虹鳟、大西洋鲑和北极嘉鱼)、罗非鱼、沟鲶和日本牙鲆等种类中开展,而且定位研究仍处在初级水平。