Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

Genome Size and the Evolution of New Genes03:21

Genome Size and the Evolution of New Genes

8.0K
While every living organism has a genome of some kind (be it RNA, or DNA), there is considerable variation in the sizes of these blueprints. One major factor that impacts genome size is whether the organism is prokaryotic or eukaryotic. In prokaryotes, the genome contains little to no non-coding sequence, such that genes are tightly clustered in groups or operons sequentially along the chromosome. Conversely, the genes in eukaryotes are punctuated by long stretches of non-coding sequence.
8.0K
The Evidence for Evolution02:55

The Evidence for Evolution

42.7K
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.
42.7K
Types of Selection01:46

Types of Selection

40.5K
Natural selection influences the frequencies of particular alleles and phenotypes within populations in several different ways. Primarily, natural selection can be directional, stabilizing, or disruptive. Directional selection favors one extreme trait and shifts the population towards that phenotype while selecting against individuals displaying alternate traits. Stabilizing selection favors an intermediate trait with a narrow range of variation. Deviation from the optimal phenotype towards an...
40.5K
Gene Flow02:39

Gene Flow

35.1K
Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
35.1K
Limits to Natural Selection01:38

Limits to Natural Selection

31.3K
Organisms that are well-adapted to their environment are more likely to survive and reproduce. However, natural selection does not lead to perfectly adapted organisms. Several factors constrain natural selection.
31.3K
What is Natural Selection?01:32

What is Natural Selection?

115.3K
Natural selection is an evolutionary process in which individuals with survival-promoting traits reproduce at higher rates. These favorable traits become more common within a population or species. Naturally selected traits initially arise via random genetic mutations. In order for selection to occur, there must be variation within a population, the trait controlling the variation must be heritable, and there must be an evolutionary advantage for variation in the trait.
115.3K

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Balancing Selection on a Single Locus Controls Colour Polymorphism in a Reptile via Tubulin Modification.

Molecular ecology·2026
Same author

Skin Colour in Salamanders Is Modulated by Both Epitranscriptomic Methylation and Gene Expression.

Molecular ecology·2026
Same author

Defining Conservation Units in a Highly Diverse Species: A Case on Arctic Charr.

Evolutionary applications·2025
Same author

Species-specific behaviour and environmental drivers of trap interactions in wild ornamental fishes.

Journal of fish biology·2025
Same author

Influences of Diet Quality, Nursery-Habitat Complexity and Sex on Brain Development and Cognitive Performance of Brown Trout (<i>Salmo trutta</i> L.).

Ecology and evolution·2025
Same author

Contributions of epigenomic and epitranscriptomic methylation to animal colouration.

Trends in genetics : TIG·2025
Same journal

Erratum for the Research Article "Detecting supramolecular organic nanoparticles during heat wave".

Science (New York, N.Y.)·2026
Same journal

Local signals, systemic decline.

Science (New York, N.Y.)·2026
Same journal

The mechanics of liver regeneration.

Science (New York, N.Y.)·2026
Same journal

Computing in a memory with physics.

Science (New York, N.Y.)·2026
Same journal

Retraction.

Science (New York, N.Y.)·2026
Same journal

Making time.

Science (New York, N.Y.)·2026
関連記事をすべて見る

関連する実験動画

Updated: Jul 6, 2025

Following the Dynamics of Structural Variants in Experimentally Evolved Populations
04:52

Following the Dynamics of Structural Variants in Experimentally Evolved Populations

Published on: February 3, 2023

990

新しい表型への進化の経路

Kathryn R Elmer1

  • 1School of Biodiversity, One Health & Veterinary Medicine, University of Glasgow, Glasgow, UK.

Science (New York, N.Y.)
|January 4, 2024
PubMed
まとめ
この要約は機械生成です。

生態系モデルシステムは 植物や動物の新しい特徴を明らかにします これらのシステムは 進化の革新と生物多様性を理解するのに 極めて重要です

さらに関連する動画

Procedure for Adaptive Laboratory Evolution of Microorganisms Using a Chemostat
06:03

Procedure for Adaptive Laboratory Evolution of Microorganisms Using a Chemostat

Published on: September 20, 2016

14.4K
Mutagenesis and Functional Selection Protocols for Directed Evolution of Proteins in E. coli
09:01

Mutagenesis and Functional Selection Protocols for Directed Evolution of Proteins in E. coli

Published on: March 16, 2011

30.5K

関連する実験動画

Last Updated: Jul 6, 2025

Following the Dynamics of Structural Variants in Experimentally Evolved Populations
04:52

Following the Dynamics of Structural Variants in Experimentally Evolved Populations

Published on: February 3, 2023

990
Procedure for Adaptive Laboratory Evolution of Microorganisms Using a Chemostat
06:03

Procedure for Adaptive Laboratory Evolution of Microorganisms Using a Chemostat

Published on: September 20, 2016

14.4K
Mutagenesis and Functional Selection Protocols for Directed Evolution of Proteins in E. coli
09:01

Mutagenesis and Functional Selection Protocols for Directed Evolution of Proteins in E. coli

Published on: March 16, 2011

30.5K

科学分野:

  • エコロジー
  • 進化生物学
  • 特徴 イノベーション

背景:

  • 複雑な生物学的現象を研究するための 簡素化されながらも強力なフレームワークを提供します
  • 新しい特徴の起源と進化を理解することは,生態学と進化生物学にとって根本的なものです.

研究 の 目的:

  • 生物学的モデルシステムが 植物や動物の多様性における 革新的な特性を明らかにする方法を研究する.
  • 進化の鍵となるメカニズムを特定する際のモデルシステムの有用性を強調する.

主な方法:

  • 確立された生態系モデルシステム (例えば,特定の植物や動物の種) を利用する.
  • 異なるモデルシステムにおける特性の進化の比較分析
  • 特徴の革新に影響を与える遺伝的および環境的要因を調査する.

主要な成果:

  • モデルシステムは,植物や動物のいくつかの革新的な特徴を成功裏に特定しました.
  • 特徴の進化を駆動する重要な遺伝的経路と生態学的圧力が解明されました.
  • 生物多様性を理解するためのモデルシステムの予測力を実証した.

結論:

  • 生態系モデルシステムは 新しい特性の基礎を明らかにするのに 価値があります
  • このアプローチにより 進化の過程と適応の理解が深まります
  • 発見は,生物学的研究におけるモデルシステムのより広範な適用を支持する.