面部阳刚特征似乎不是一种依赖于条件的雄性装饰物，也不能反映人类 MHC 的杂合度。
Facial masculinity does not appear to be a condition-dependent male ornament and does not reflect MHC heterozygosity in humans.
机构信息
Department of Anthropology, Pennsylvania State University, University Park, PA 16802;
Department of Biology, Pennsylvania State University, University Park, PA 16802.
出版信息
Proc Natl Acad Sci U S A. 2019 Jan 29;116(5):1633-1638. doi: 10.1073/pnas.1808659116. Epub 2019 Jan 15.
Recent studies have called into question the idea that facial masculinity is a condition-dependent male ornament that indicates immunocompetence in humans. We add to this growing body of research by calculating an objective measure of facial masculinity/femininity using 3D images in a large sample ( = 1,233) of people of European ancestry. We show that facial masculinity is positively correlated with adult height in both males and females. However, facial masculinity scales with growth similarly in males and females, suggesting that facial masculinity is not exclusively a male ornament, as male ornaments are typically more sensitive to growth in males compared with females. Additionally, we measured immunocompetence via heterozygosity at the major histocompatibility complex (MHC), a widely-used genetic marker of immunity. We show that, while height is positively correlated with MHC heterozygosity, facial masculinity is not. Thus, facial masculinity does not reflect immunocompetence measured by MHC heterozygosity in humans. Overall, we find no support for the idea that facial masculinity is a condition-dependent male ornament that has evolved to indicate immunocompetence.
最近的研究质疑了这样一种观点，即面部男性特征是一种依赖于条件的男性装饰物，它可以表明人类的免疫能力。我们通过在一个大型欧洲血统人群样本（n=1233）中使用 3D 图像来计算面部男性特征/女性特征的客观衡量标准，从而为这一不断增长的研究领域做出了贡献。我们发现，男性和女性的面部男性特征都与成年身高呈正相关。然而，男性和女性的面部男性特征与生长的比例相似，这表明面部男性特征并非男性特有的装饰物，因为与女性相比，男性特有的装饰物通常对男性的生长更为敏感。此外，我们还通过主要组织相容性复合体（MHC）的杂合度来衡量免疫能力，MHC 是一种广泛用于免疫的遗传标志物。我们发现，虽然身高与 MHC 杂合度呈正相关，但面部男性特征并非如此。因此，面部男性特征并不能反映人类 MHC 杂合度所衡量的免疫能力。总的来说，我们没有发现任何支持面部男性特征是一种依赖于条件的男性装饰物，它可以进化来表明免疫能力的观点的证据。
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