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相关概念视频

Evolutionary Relationships through Genome Comparisons02:54

Evolutionary Relationships through Genome Comparisons

5.7K
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...
5.7K
Genetics of Speciation02:16

Genetics of Speciation

19.2K
Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.
19.2K
Gene Evolution - Fast or Slow?02:05

Gene Evolution - Fast or Slow?

7.1K
The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
In contrast, regions which code...
7.1K
Phylogeny01:23

Phylogeny

43.8K
Phylogeny is concerned with the evolutionary diversification of organisms or groups of organisms. A group of organisms with a name is called a taxon (singular). Taxa (plural) can span different levels of the evolutionary hierarchy. For instance, the group containing all birds is a taxon (comprising the class Aves), and the group of all species of daisies (the genus Bellis) is a taxon. Phylogenies can likewise include just one genus (i.e., depict species relationships) or span an entire kingdom.
43.8K
Phylogenetic Trees03:21

Phylogenetic Trees

45.3K
Phylogenetic trees come in many forms. It matters in which sequence the organisms are arranged from the bottom to the top of the tree, but the branches can rotate at their nodes without altering the information. The lines connecting individual nodes can be straight, angled, or even curved.
45.3K
Gene Flow02:39

Gene Flow

35.0K
Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
35.0K

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相关实验视频

Updated: Jun 17, 2025

A Practical Guide to Phylogenetics for Nonexperts
12:00

A Practical Guide to Phylogenetics for Nonexperts

Published on: February 5, 2014

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物理连接:用于模拟,开发和教导进化模型的计算框架.

Fábio K Mendes1, Michael J Landis2

  • 1Department of Biology, Louisiana State University, Baton Rouge, LA, USA.

Systematic biology
|August 8, 2024
PubMed
概括
此摘要是机器生成的。

PhyloJunction是一个新的开源Python库,用于进化建模. 它简化了模拟,总结和可视化数据的遗传学多样化模型.

关键词:
进化模型的演化模型.图形模型是一个图形模型.模拟模拟是指一个模拟模拟器.

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Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin
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Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin

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A Bioinformatics Pipeline for Investigating Molecular Evolution and Gene Expression using RNA-seq
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A Bioinformatics Pipeline for Investigating Molecular Evolution and Gene Expression using RNA-seq

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相关实验视频

Last Updated: Jun 17, 2025

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12:00

A Practical Guide to Phylogenetics for Nonexperts

Published on: February 5, 2014

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Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin
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Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin

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A Bioinformatics Pipeline for Investigating Molecular Evolution and Gene Expression using RNA-seq
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A Bioinformatics Pipeline for Investigating Molecular Evolution and Gene Expression using RNA-seq

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科学领域:

  • 计算生物学 计算生物学
  • 进化生物学 进化生物学
  • 生物信息学是一种生物信息学.

背景情况:

  • 开发和测试进化模型是复杂的.
  • 现有的工具可能缺乏灵活性来实现各种模型的实现.
  • 遗传学多样化模型对于理解进化过程至关重要.

研究的目的:

  • 介绍PhyloJunction,一个用于进化建模的灵活计算框架.
  • 为原型设计,测试和特征模型提供一个用户友好的平台.
  • 能够更容易地实施和分析遗传学多样化模型.

主要方法:

  • 开发了PhyloJunction作为一个开源的Python库.
  • 实现了灵活的图形建模架构和专门的模型规范语言.
  • 集成的命令行和图形接口用于数据模拟,总结和可视化.

主要成果:

  • PhyloJunction促进了进化模型的原型设计,测试和表征.
  • 该框架支持一个流行的植物遗传多样化模型家族的一般实施.
  • 用户界面简化了从模型设计到数据分析的工作流程.

结论:

  • PhyloJunction提供了一个用于进化模型开发的多功能平台.
  • 图书馆的架构允许未来扩展,包括新的模型和统计学习应用程序.
  • PhyloJunction可以成为进化生物学研究和教育的一个有价值的工具.