Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Teeth01:15

Teeth

483
The formation of teeth, also known as odontogenesis, is a complex process that begins in utero, around the sixth week of embryonic development. There are three stages to this process: the bud stage, the cap stage, and the bell stage.
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin...
483
Synteny and Evolution02:31

Synteny and Evolution

3.3K
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...
3.3K
The Evidence for Evolution02:55

The Evidence for Evolution

42.9K
Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
42.9K
Tooth Anatomy01:21

Tooth Anatomy

541
The human tooth enables us to eat a variety of foods, speak clearly, and even aid in shaping our faces. Teeth are composed of various elements that work together. Here's a detailed look at the anatomy of a human tooth.
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or...
541
The Fossil Record02:56

The Fossil Record

25.3K
The fossil record documents only a small fraction of all organisms that have ever inhabited Earth. Fossilization is a rare process, and most organisms never become fossils. Moreover, the fossil record only exhibits fossils that have been discovered. Nevertheless, sedimentary rock fossils of long-lived, abundant, hard-bodied organisms dominate the fossil record. These fossils offer valuable information, such as an organism's physical form, behavior, and age. Studying the fossil record helps...
25.3K
Convergent Evolution01:54

Convergent Evolution

27.8K
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.
27.8K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

How Thermal Tolerance Shapes Species Distributions: An Integrative Perspective on the Most Diverse Lizard Family from North America.

The American naturalist·2026
Same author

The frontal sinus of the adult human cranium from Border Cave, KwaZulu-Natal, South Africa: Does it provide a contextual clue?

Anatomical record (Hoboken, N.J. : 2007)·2026
Same author

Comparability of CT and μCT-Extracted Femoral Diaphyseal Data in Primates.

American journal of biological anthropology·2026
Same author

Heritable variation drives rapid evolution of thermal performance curves in the protist Tetrahymena thermophila.

Communications biology·2026
Same author

"It's a journey": Psychosocial perspectives on parenting a young child with esophageal atresia.

Pediatric surgery international·2026
Same author

Development of a lifelong core outcome set for oesophageal atresia ± tracheoesophageal fistula: the OCELOT study.

BMJ open·2026

相关实验视频

Updated: Jul 17, 2025

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
07:26

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology

Published on: August 22, 2022

1.5K

牙发育规则使微观进化与现存和灭绝的灵长类动物的宏观进化保持一致.

Fabio A Machado1, Carrie S Mongle2,3, Graham Slater4

  • 1Department of Integrative Biology, Oklahoma State University, Stillwater, OK, USA. fabio.machado@okstate.edu.

Nature ecology & evolution
|August 31, 2023
PubMed
概括
此摘要是机器生成的。

将发育生物学 (evo-devo) 与定量遗传学相结合,弥合了微观和宏观进化的尺度. 生物知情模型揭示了灵长类动物牙进化的走廊式适应性景观.

更多相关视频

The Slice Culture Method for Following Development of Tooth Germs In Explant Culture
07:47

The Slice Culture Method for Following Development of Tooth Germs In Explant Culture

Published on: November 13, 2013

14.1K
Assessing Species-specific Contributions To Craniofacial Development Using Quail-duck Chimeras
09:38

Assessing Species-specific Contributions To Craniofacial Development Using Quail-duck Chimeras

Published on: May 31, 2014

11.0K

相关实验视频

Last Updated: Jul 17, 2025

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology
07:26

Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology

Published on: August 22, 2022

1.5K
The Slice Culture Method for Following Development of Tooth Germs In Explant Culture
07:47

The Slice Culture Method for Following Development of Tooth Germs In Explant Culture

Published on: November 13, 2013

14.1K
Assessing Species-specific Contributions To Craniofacial Development Using Quail-duck Chimeras
09:38

Assessing Species-specific Contributions To Craniofacial Development Using Quail-duck Chimeras

Published on: May 31, 2014

11.0K

科学领域:

  • 进化生物学是进化的生物学.
  • 发育生物学 (evo-devo) 是一个学科.
  • 定量遗传学 是一个量子遗传学.

背景情况:

  • 经典的宏观进化研究往往将宏观和微观进化过程分开.
  • 定量遗传学模型难以预测形态学的长期进化模式.
  • 发育研究 (evo-devo) 提供了潜在的联系,但缺乏表型多样化的正式框架.

研究的目的:

  • 确定使用evo-devo模型量化生物变异是否可以增强比较模型.
  • 弥合微观进化和宏观进化尺度之间的差距.
  • 将evo-devo融入现代合成中,以了解宏观进化原因.

主要方法:

  • 制定一个正式的框架,以应用evo-devo模型来表型多样化.
  • 使用生物信息的形态空间与定量遗传学一起.
  • 在现存和已灭绝的种群中分析一套关于灵长类动物下进化的综合数据集.

主要成果:

  • 生物信息的形态空间与定量遗传学相结合,使微观和宏观进化尺度之间的无过渡成为可能.
  • 生物学上不知情的形态空间无法提供这种整合能力.
  • 灵长类动物牙进化的适应性景观类似于走廊,走廊内的形态变化几乎是中性的.

结论:

  • 提出的框架成功地将evo-devo整合到进化生物学中.
  • 这种方法为评估宏观进化的最终原因提供了一个操作方法.
  • 了解发育变异是连接微观和宏观进化过程的关键.