一个基因文化共同进化的视角对人类双胞胎的难题
Augusto Dalla Ragione1, Cody T Ross1, Daniel Redhead1,2,3,2,3
1Department of Human Behavior, Ecology and Culture, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.
Evolutionary human sciences
|November 27, 2024
概括
尽管成本高昂,但人类结对率令人费解地高. 基因文化共同进化,与"双胞胎" (双胞胎庆祝) 文化缓冲成本,可能解释了为什么双胞胎仍然存在.
科学领域:
- 进化生物学是进化的生物学.
- 人类生殖策略 人类生殖策略
- 人类学是人类学.
背景情况:
- 自然选择通常有利于幼大小,优化后代的生存和父母的投资.
- 灵长类动物,包括人类,通常表现出1个模态子大小,反映出对最小子的选择.
- 人类的双胞胎发生在显著的速度,尽管相当大的成本,构成一个进化悖论.
研究的目的:
- 为了调查人类结对率持续的进化难题,尽管相关的成本.
- 为了调和已建立的双胞胎监管理论和经验数据之间的差异.
- 为人类结生率的地理模式提出一个新的解释.
主要方法:
- 对灵长类子大小和人类结对率的比较分析.
- 检查影响不同社会结合率的经济因素.
- 开发一种基因文化共同进化模型,包括对双胞胎的文化态度.
主要成果:
- 与以资源为基础的可塑性理论相反,在较贫穷的经济体中,人类结合率更高,在发达经济体中更低.
- 被称为"双胞胎爱好" (庆祝双胞胎) 和"双胞胎恐惧" (敌对双胞胎) 的文化背景显示出与双胞胎患病率的潜在联系.
- "双胞胎友好"的文化机构可以减轻双胞胎的健康成本,减少对多排卵的选择.
结论:
- 基因培养的共同进化为人类的双胞胎模式提供了一个比单独依赖资源的可塑性更令人信服的解释.
- 支持双胞胎的文化实践可以缓冲健身成本,可能保持更高的双胞胎率.
- 提出了一个整合数学建模和经验研究的研究计划来测试这些假设.
相关概念视频
01:23Behavioral Genetics and Its Designs
329
Behavior genetics explores how genetic inheritance influences human behavior. It focuses on how genes, passed from parents to offspring, contribute to the development of behavioral traits and tendencies. This branch of genetics seeks to understand the complex interplay between inherited genetic factors and environmental influences in shaping our behaviors.
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
The primary methodologies used in behavior genetics include family studies, twin studies, and adoption studies, each providing unique...
329
02:18Types of Genetic Transfer Between Organisms
27.1K
Genetic transfer occurs when genetic information is passed from one organism to another. It occurs via two mechanisms: vertical gene transfer and horizontal gene transfer. Vertical gene transfer occurs when genetic information is transferred from one generation to the next, which happens much more frequently than horizontal gene transfer. Both sexual and asexual reproduction are forms of vertical gene transfer, where one or more organisms pass some or all of their genome onto their progeny.
27.1K
01:20Evolutionary Psychology
248
Evolutionary psychology explores the origins of human behavior and mental processes by framing them within the context of natural selection, a theory famously propounded by Charles Darwin. This field asserts that many behaviors common across human societies — ranging from instinctive fear reactions to complex social interactions — arose as evolutionary adaptations. These adaptations enhanced the survival and reproductive success of our ancestors, thereby becoming embedded in the...
248
01:28Human Genetics
535
Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
The complex relationship between genetics and psychology is observable through common biological components such...
535
02:39Gene Flow
34.8K
Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
34.8K
02:37Gene Duplication and Divergence
6.0K
The seminal work of Ohno in 1970 popularized the idea of gene duplication and divergence. DNA sequence comparison studies reveal that a large portion of the genes in bacteria, archaebacteria, and eukaryotes was generated by gene duplication and divergence, indicating its critical role in evolution.
The duplicated copies of the gene are called Paralogs. Paralogs with similar sequences and functions form a gene family. Across several species, a large number of gene families are...
The duplicated copies of the gene are called Paralogs. Paralogs with similar sequences and functions form a gene family. Across several species, a large number of gene families are...
6.0K