复杂性状是由多基因控制的多因素疾病性状。包括体重、血液化学、免疫细胞以及宿主对传染病和慢性病的易感性等。近年来,人们投入了大量的资金和精力来研究这些性状产生的宿主遗传因素。由于多种因素的限制,这些复杂疾病的研究很难在人类上直接开展。而由于鼠科与人类间存在大量的同源基因,使得在鼠模型中所筛选到的相关数量性状基因座位(QTL)及候选基因适用于人类复杂疾病的研究。这样一旦在鼠类中找到相关QTL或候 Complex traits are multifactorial disease traits controlled by multiple genes. Including body weight, blood chemistry, immune cells and host susceptibility to infectious diseases and chronic diseases. In recent years, people have invested a lot of money and energy to study the host genetic factors generated by these traits. Due to a variety of factors, the study of these complex diseases is very difficult to carry out directly in humans. Due to the large number of homologous genes between murine and human, the related quantitative trait loci (QTLs) and candidate genes screened in the mouse model are suitable for the study of complex human diseases. So once you find the relevant QTL or mouse in the mouse