Search research articles

お問い合わせ

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 Journal Methods Collections JoVE Encyclopedia of Experiments アーカイブ

教育

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual 教員リソースセンター教員サイト

プライバシーポリシー

関連する概念動画

Habitat Fragmentation

Habitat Fragmentation

Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.

Speciation Rates

Speciation Rates

Background and Environment Affect Phenotype

Background and Environment Affect Phenotype

Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...

Genetics of Speciation

Genetics of Speciation

Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.

Applications of Molecular Taxonomy

Applications of Molecular Taxonomy

Molecular taxonomy has revolutionized the understanding and classification of bacteria, providing precise insights into their diversity, evolutionary relationships, and ecological roles. By utilizing molecular techniques such as DNA sequencing and fingerprinting, researchers have made significant strides in various fields related to bacterial studies.Resolving Taxonomic AmbiguitiesMolecular taxonomy has been instrumental in distinguishing closely related bacterial species initially thought to...

Ecological Niches

Ecological Niches

All organisms have a position within an ecosystem. The complete set of living and nonliving factors—including food resources, climate, and terrain—that define the position of a given organism are collectively referred to as the organism’s ecological niche.

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

A comprehensive reference genome assembly dataset of birds inhabiting Denmark, Greenland, and the Faroe Islands.

GigaScience·2026

Same author

ERGA-BGE reference genome of the Eurasian Woodcock ( <i>Scolopax rusticola</i>), a game bird species with isolated populations of conservation interest.

Open research Europe·2026

Same author

The Vertebrate Genomes Project Phase I: A global reference genome resource.

bioRxiv : the preprint server for biology·2026

Same author

Assessing Climate Adaptation Among Canada Lynx (Lynx canadensis) Populations at the Trailing Edge.

Molecular ecology·2026

Same author

Distinct genomic architectures but the same gene underlie the convergent evolution of a plant supergene.

Science advances·2026

Same author

CAD-C: An engineered nuclease enables repair-free in situ proximity ligation and nucleosome-resolution chromosome walks in human cells.

bioRxiv : the preprint server for biology·2026

Search research articles

関連する実験動画

Updated: Sep 9, 2025

Using Pharmacological Manipulation and High-precision Radio Telemetry to Study the Spatial Cognition in Free-ranging Animals

Using Pharmacological Manipulation and High-precision Radio Telemetry to Study the Spatial Cognition in Free-ranging Animals

Published on: November 6, 2016

環境ニッチモデリングと全ゲノムデータから推論された亀の四次生息地変動と人口動態

Marcella Sozzoni¹, Jennifer Balacco², Massimo Bellavita³

¹Department of Biology, University of Florence, Sesto Fiorentino, Italy.

Molecular ecology resources

|September 4, 2025

まとめ

カメのゲノム多様性は過去の集団の変化を明らかにしますが保存状態を一貫して予測することはできませんこれらの遺伝パターンを理解することは気候変動に対する種の回復力を評価する上で極めて重要です

キーワード:

エミス・オルビキュラリス ENM について PSMC について有効な人口規模人口ゲノミクス爬虫類

さらに関連する動画

Data Collection on Marine Litter Ingestion in Sea Turtles and Thresholds for Good Environmental Status

Data Collection on Marine Litter Ingestion in Sea Turtles and Thresholds for Good Environmental Status

Published on: May 18, 2019

Resurrection of Dormant Daphnia magna: Protocol and Applications

Resurrection of Dormant Daphnia magna: Protocol and Applications

Published on: January 19, 2018

関連する実験動画

Last Updated: Sep 9, 2025

Using Pharmacological Manipulation and High-precision Radio Telemetry to Study the Spatial Cognition in Free-ranging Animals

Using Pharmacological Manipulation and High-precision Radio Telemetry to Study the Spatial Cognition in Free-ranging Animals

Published on: November 6, 2016

Data Collection on Marine Litter Ingestion in Sea Turtles and Thresholds for Good Environmental Status

Data Collection on Marine Litter Ingestion in Sea Turtles and Thresholds for Good Environmental Status

Published on: May 18, 2019

Resurrection of Dormant Daphnia magna: Protocol and Applications

Resurrection of Dormant Daphnia magna: Protocol and Applications

Published on: January 19, 2018

科学分野:

進化生物学
保存遺伝学
ゲノミクス

背景:

四季期の気候の変動は生態系と種の進化に大きく影響した.
ゲノムデータを環境ニッチモデリングと組み合わせると気候変動に対する生物の反応の洞察が得られます
カメは特に環境の変化に弱い生命の歴史と生理学のために

研究の目的:

ゲノムデータを用いて過去の気候変動の影響を調査する.
遺伝的多様性,実際の集団の大きさ,そしてカメの保全状態の関係を評価する.
気候変動に対する種の脆弱性を予測するゲノムパラメータの有用性を評価する.

主な方法:

Emys orbicularisの染色体レベルの参照ゲノムを生成した.
21種のカメの全ゲノムを分析した
過去の生息地動態を再構築するために環境ニッチモデリング (ENM) を採用した.
推定された同期ヘテロジゴシティ (H) と有効な集団サイズ (Ne).

主要な成果:

過去1000万年にわたるカメの集団拡大と縮小のサイクルを特定した.
氷河期後の温度の低下と相関する実態群の大きさ (Ne) の一般的減少が観察された.
四季期の生息地の変動と過去のネとの間には相関がない.
ヘテロジゴシティ (H) や平均ネはIUCNレッドリストの脅威状態と相関していません.

結論:

ゲノムパラメータは過去の人口動態について情報を提供しますが,現在の保全状態を一貫して予測することはできません.
生物多様性の保全に不可欠な変数を最もよく表すゲノムパラメータを特定するには,さらなる研究が必要です.
この研究は脊椎動物種の気候,遺伝,保全の複雑な相互作用を強調しています