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相关概念视频

Cis-regulatory Sequences02:02

Cis-regulatory Sequences

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Cis-regulatory sequences are short fragments of non-coding DNA that are present on the same chromosomes as the genes that they regulate. These fragments serve as binding sites for transcriptional regulators, proteins that are responsible for controlling gene transcription and differential gene expression across cell types in eukaryotes. Cis-regulatory sequences can be close to the gene of interest or thousands of bases away in the DNA sequence; however, those sequences that are further away are...
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Synteny and Evolution02:31

Synteny and Evolution

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John H. Renwick first coined the term “synteny” in 1971, which refers to the genes present on the same chromosomes, even if they are not genetically linked. The species with common ancestry tend to show conserved syntenic regions. Therefore, the concept of synteny is nowadays used to describe the evolutionary relationship between species.
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
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Convergent Evolution01:54

Convergent Evolution

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Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.
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Criticisms of the Evolutionary Perspective01:23

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In a study where individuals posing as strangers offered compliments and proposed casual sex to students, the responses differed significantly based on gender. Not a single woman accepted the proposal, while 70% of the men agreed. This outcome provides a useful scenario to explore through the lens of evolutionary psychology and social learning theory, highlighting the diverse perspectives on human sexual behaviors.
Evolutionary psychology provides one explanation for these findings, suggesting...
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Eukaryotic Evolution01:24

Eukaryotic Evolution

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The endosymbiont theory is the most widely accepted theory of eukaryotic evolution; however, its progression is still somewhat debated. According to the nucleus-first hypothesis, the ancestral prokaryote first evolved a membrane to enclose DNA and form the nucleus. Conversely, the mitochondria-first hypothesis suggests that the nucleus was formed after endosymbiosis of mitochondria.
Contrary to the endosymbiont theory, the eukaryote-first hypothesis proposes that the simpler prokaryotic and...
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Updated: Sep 17, 2025

Reverse Dissection and DiceCT Reveal Otherwise Hidden Data in the Evolution of the Primate Face
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在灵长类动物进化过程中解决监管变化的缺失背景问题.

Genevieve Housman1, Audrey Arner2, Amy Longtin2

  • 1Department of Primate Behavior and Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany.

Current opinion in genetics & development
|June 27, 2025
PubMed
概括
此摘要是机器生成的。

研究灵长类动物的适应性特征变异需要理解非编码的调节元素. 功能性基因组数据,特别是上下文依赖的影响,对于进化见解和疾病研究至关重要.

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科学领域:

  • 进化生物学是进化的生物学.
  • 基因组学就是基因组学.
  • 灵长类动物的进化

背景情况:

  • 灵长类动物的适应性特征变异通常涉及非编码的调节区域.
  • 由于非人类灵长类动物的功能性基因组数据有限,将这些变异与表型联系起来具有挑战性.
  • 适应变体的上下文依赖性影响越来越多地得到认可,但研究不足.

研究的目的:

  • 突出在灵长类的适应性进化中,上下文依赖的调节位置的重要性.
  • 探索用于映射上下文依赖变化的挑战和解决方案.
  • 概述这些数据可以解决的科学问题.

主要方法:

  • 审查关于灵长类动物功能基因组学和进化适应现有的文献.
  • 讨论产生和分析大规模,多背景功能基因组数据所面临的挑战.
  • 确定未来研究的关键研究问题.

主要成果:

  • 环境依赖的监管变体对于理解适应性进化至关重要.
  • 在不同的环境中生成全面的功能性基因组数据是必不可少的.
  • 解决数据缺口将为进化过程和人类疾病提供洞察力.

结论:

  • 功能性基因组学数据,特别是在各种背景下,对于灵长类动物进化研究至关重要.
  • 未来的研究应该专注于绘制上下文依赖的监管变化.
  • 这种方法为适应,进化和疾病提供了关键的见解.