Supergene a collection of closely linked genes that determine a particular trait or series of inter - related traits and behave as a single unit because crossing over between them is very rare 超基因:一组紧密联系在一起的基因集合,它们共同决定一个生物特性或一系列内在相关的生物特性,由于内部很少发生交叉,故常被当作一个独立单位。