绵羊和山羊可能成为一些人畜共患疾病的携带者。它们是重要的牲畜和人类的实验模型动物。快速准确地鉴定来源于绵羊和山羊的遗传物质,可以预防和抑制一些人畜共患疾病的传播,监控市场产品质量,保持畜牧业和食品工业的稳定。这项研究提出了一种从全基因组角度鉴定绵羊和山羊常见特异性位点的方法。从三个数据来源共选出150个特定网站,包括来自9个物种的单拷贝基因的编码序列(绵羊,山羊,母牛,猪,狗,马,人类,鼠标,和鸡肉),这些物种的dbSNP,和人类100向对准数据。这150个位点在来自五个物种的1450个样品的重测序数据中表现出低的种内异质性(绵羊,山羊,母牛,猪,和鸡)以及质量控制后人类100向比对数据中的高种间差异。结果在数据层面被证明是可靠的。使用本研究中提出的过程,可以筛选其他物种的特定位点,和基因组水平的物种鉴定可以使用筛选的位点进行。
Sheep and goat may become carriers of some zoonotic diseases. They are important livestock and experimental model animals for human beings. The fast and accurate identification of genetic materials originating from sheep and goat can prevent and inhibit the spread of some zoonotic diseases, monitor market product quality, and maintain the stability of animal husbandry and food industries. This study proposed a methodology for identifying sheep and goat common specific sites from a genome-wide perspective. A total of 150 specific sites were selected from three data sources, including the coding sequences of single copy genes from nine species (sheep, goat, cow, pig, dog, horse, human, mouse, and chicken), the dbSNPs for these species, and human 100-way alignment data. These 150 sites exhibited low intraspecific heterogeneity in the resequencing data of 1450 samples from five species (sheep, goat, cow, pig, and chicken) and high interspecific divergence in the human 100-way alignment data after quality control. The results were proven to be reliable at the data level. Using the process proposed in this study, specific sites of other species can be screened, and genome-level species identification can be performed using the screened sites.