関連する実験動画
Updated: Jul 15, 2026

09:53
Gene Editing of Primary Rhesus Macaque B Cells
Published on: February 10, 2023
レサス・マカクのゲノムからの進化的および生物医学的な洞察
1, Richard A Gibbs, Jeffrey Rogers
1Human Genome Sequencing Center, Baylor College of Medicine, Houston, TX 77030, USA. agibbs@bcm.edu
まとめ
レサス・マカクのゲノム配列は,霊長類の進化と遺伝的多様性についての洞察を提供します. この研究により,レサス猿の特徴が向上しています.
科学分野:
- ゲノミクスゲノミクスとは
- 類人猿の生物学について
- 進化生物学の進化生物学について
背景:
- レサス・マカーク (Macaca mulatta) は,ヒトとの遺伝的,生理学的類似性があるため,生物医学研究における重要な非人間霊長類である.
- 彼らは約2500万年前に人間の祖先から分離した.
研究 の 目的:
- インド系 rhesus macaque のゲノム配列を決定するために.
- このゲノムをチンパンジーとヒトのゲノムと比較するために.
- 霊長類のゲノム進化を調査し,陽性選択の兆候を特定し,遺伝子ファミリーの動態を分析する.
主な方法:
- インド系メスのレサス・マカクの全ゲノム配列解析.
- 人間とチンパンジーのゲノムと比較したゲノム分析.
- 個々の配列の比較を通じて遺伝的多様性の分析.
主要な成果:
- rhesus macaque のゲノム配列が決定されました.
- 比較分析により,祖先の霊長類のゲノム構造に関する洞察が明らかになった.
- 陽性選択と遺伝子ファミリーの拡大/収縮の証拠が特定されました.
- 種内の遺伝的多様性が調査されました.
結論:
- マカクのゲノム・ブループリントは,生物医学研究モデルとしての有用性を高めています.
- この研究は,レサス・マカクの生物学と霊長類の進化に関する私たちの理解を前進させます.
関連する概念動画
Synteny and Evolution
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 chromosome underwent...
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral chromosome underwent...
Evolutionary Relationships through Genome Comparisons
Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
Convergent Evolution
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.The structures that arise from convergent evolution are called analogous structures. They are similar in function even if they are dissimilar in structure. Further, structures can be analogous while also...
Cis-regulatory Sequences
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...
Evolution of Microbial Genome
Microbial genome evolution is a highly dynamic process shaped by continual gene gain and loss across species and strains. This genomic flexibility allows microorganisms to adapt rapidly to environmental pressures and interactions with other organisms. Central to understanding this diversity is the distinction between the core and pan genomes.The core genome comprises the genes shared by all sampled strains of a species, representing essential functions needed for fundamental cellular processes.
Evolution of New Traits in Microbes
Microorganisms evolve rapidly due to their large population sizes and short generation times, often exhibiting measurable changes within days under laboratory conditions. Natural selection acts on standing genetic variation, enabling the retention and amplification of beneficial traits that confer fitness advantages in changing environments.Adaptive Pigment Regulation in RhodobacterIn Rhodobacter, a genus of purple non-sulfur bacteria, light-harvesting pigments such as bacteriochlorophyll and...

