Mapping quantitative trait loci (QTL) in autotetraploid species represents a timely and challenging task. Two papers published by Wu and his colleagues proposed statistical methods for QTL mapping in these evolutionarily and economically important species. In this Letter to the Editor, we present critical comments on the fundamental conceptual errors involved, from both statistical and genetic points of view.

中文翻译：

---

致编辑的信：绘制同源四倍体物种数量性状基因座的方法。

在同源四倍体物种中绘制数量性状基因座 (QTL) 是一项及时且具有挑战性的任务。Wu 和他的同事发表的两篇论文提出了在这些具有进化和经济重要性的物种中进行 QTL 定位的统计方法。在这封给编辑的信中，我们从统计和遗传的角度对所涉及的基本概念错误提出了批评意见。