Xia Qi, Anwar Ullah, Weijian Yu, Yingshuai Wang, Hui Liu
College of Medical Laboratory, Dalian Medical University, Dalian, 116044, China.
Genes Environ. 2023 Oct 20;45(1):26. doi: 10.1186/s41021-023-00281-6.
The aim of this study was to assess the correlation of spouse selection with short tandem repeats (STRs) in DNA and with the number of fingertip lunulae to investigate the role of heredity in spouse selection.
We randomly selected a total of 286 couples (husband and wife) as a couple group while 200 paired subjects (a man randomly matched with a woman as a pair of subjects) were selected as a non-spouse group for DNA typing, and to investigate lunulae in spouse selection, a total of 554 couples were selected as a couple group and 500 pairs of subjects were selected as a control group.
A significant difference of STR matching number (a large value implies a higher genetic similarity) between spouse group and non-spouse group were observed (12.3 ± 2.7 vs. 11.8 ± 2.6; p < 0.05). A significant difference of the lunula matching number (difference of lunula counts between a paired subjects, a lower value implies a higher genetic similarity) between two groups were also observed for the lunula counts (1.55 ± 1.88 vs. 3.53 ± 2.40; p < 0.01).
Significant and unprecedented relationships were found between the couples and polymorphic STRs, and between spouse selection and lunula counts. Polymorphic STRs and fingertip lunulae counts provide an initial insight into the potentially important contributions that genetic characteristics may play a key role in spouse selection.
本研究旨在评估DNA中的短串联重复序列（STR）以及指尖半月痕数量与配偶选择之间的相关性，以探讨遗传因素在配偶选择中的作用。
我们随机选取了总共286对夫妻作为夫妻组，同时选取200对配对个体（一名男性与一名女性随机配对作为一对个体）作为非配偶组进行DNA分型。为了研究配偶选择中的半月痕情况，总共选取554对夫妻作为夫妻组，500对个体作为对照组。
观察到配偶组和非配偶组之间STR匹配数存在显著差异（数值越大表明遗传相似性越高）（12.3±2.7对11.8±2.6；p<0.05）。两组之间半月痕匹配数（配对个体间半月痕数量的差异，数值越低表明遗传相似性越高）也存在显著差异（1.55±1.88对3.53±2.40；p<0.01）。
发现夫妻之间以及多态性STR之间、配偶选择与半月痕数量之间存在显著且前所未有的关系。多态性STR和指尖半月痕数量初步揭示了遗传特征在配偶选择中可能发挥关键作用的潜在重要贡献。
