associated variation

例句：

1. 1. The genetic variation between different species is a significant factor in evolution.
   不同物种之间的遗传变异是进化的一个重要因素。
2. 2.The study of associated variation has led to new insights into the function of genes.
   研究关联变异已经为基因的功能提供了新的洞见。
3. 3.In this study, we focused on the associated variation in gene expression patterns across different tissues.
   在这项研究中，我们关注了在不同组织中基因表达模式的关联变异。