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图表面部生长和发展班图非洲人:中央倾向,变异性质和性二重体
Yu Jie Zhong1, Dan Cui2, Patrick Yi Feng Wen3
1Faculty of Dentistry, The University of Hong Kong, Sai Ying Pun, Hong Kong.
Journal of anatomy
|June 26, 2024
概括
班图非洲儿童 (6-18岁) 的面部发育表现出明显的模式,性别之间存在差异. 面部变化随着年龄的增长而减少,在成长过程中,特定区域的多样化.
科学领域:
- 人类学是人类学.
- 发展生物学 发展生物学
- 生物识别信息 生物识别信息
背景情况:
- 目前的面部生长研究主要集中在欧洲人群上,在了解不同人群方面存在重大差距.
- 非洲人口具有独特的遗传和环境因素,为面部发育模式提供了关键的见解.
- 在非洲人群中,面部形状的发展模式在很大程度上没有特征.
研究的目的:
- 在班图非洲群体中建立面部生长和发育轨迹.
- 识别导致非洲面部结构观察到的发育形状变化的形态遗传过程.
- 分析面部发育中的性二态模式.
主要方法:
- 利用了来自坦桑尼亚的2874名班图非洲人,年龄在6-18岁之间.
- 应用了Procrustes ANCOVA来分析性二态模式.
- 采用普罗克鲁斯特斯变异的综合增量建模和相对主要成分分析来评估变异和发育约束.
主要成果:
- 在面部形状发育中确定了显著的两性模式 (p=0.0036).
- 观察到的特定区域变化:额头收缩,女性的前额移位,增加鼻腔突起,前唇移位和女性的前阴移位.
- 面部变化随着年龄的增长而非线性地减少 (p<0.05),鼻和脑部区域显示出显著的多样化.
结论:
- 班图非洲人的面部发育表现出明显的,两性两形的轨迹.
- 形态遗传过程,包括局部扩张和区域定位,推动了这些发展变化.
- 分析框架提供了对面部形状变化的转化性见解,适用于更广泛的形态学研究.
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