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在Euarchontoglires中的内分泌形状变化和全量学
Madlen M Lang1, Camilo López-Aguirre2, Lauren Schroeder3,4
1University of Toronto Scarborough, Scarborough, ON, M1C 1A4, Canada. madlen.lang@mail.utoronto.ca.
Scientific reports
|August 2, 2024
概括
这项研究揭示了Euarchontoglires中独特的内形状模式,显示了显著的基因学差异和大脑大小和形状之间的各种各样的全米关系,特别是在鱼和动物中.
科学领域:
- 进化生物学是进化的生物学.
- 比较解剖学的比较解剖学.
- 古老神经病学 (paleoneurology) 是一种神经病学.
背景情况:
- 在Euarchontoglires中大脑的大小得到了充分的研究,但大脑形状及其全度轨迹仍然不太了解.
- 了解这些模式对于解读这个多样化的群体内的进化趋势至关重要.
研究的目的:
- 为了分析现存的euaarchontoglirans的内大脑形状变化和全量学.
- 在大脑形状中识别家族遗传模式和特定群体的全度关系.
主要方法:
- 利用了140种欧阿孔托格兰物种的数字头骨内分泌物上的3D几何形态分析.
- 应用主要组件分析和ANOVA来评估形状变化,家族遗传信号和全米效应.
主要成果:
- 脑内膜形状表现出明显的遗传学模式,主要分类之间存在显著差异 (例如,Platyrrhini,Strepsirrhini,Rodentia).
- 度学显著影响整个Euarchontoglires的内形状,在群体之间的缩放关系中存在显著差异.
- 石板鱼表现出最强大的尺寸和形状关系,而动物表现出最多的形状多样性.
结论:
- 大脑形状和大小在Euarchontoglires之间如何变化存在根本的差异.
- 这些变化的全米图案可能有助于在这个超级秩序中观察到的适应辐射.
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