相关实验视频

Updated: Jan 8, 2026

Heuristic Mining of Hierarchical Genotypes and Accessory Genome Loci in Bacterial Populations
08:03

Heuristic Mining of Hierarchical Genotypes and Accessory Genome Loci in Bacterial Populations

Published on: December 7, 2021

2.7K

科尔吉亚斯:通过考虑大型 prokaryotic 基因组数据集中的进化历史来识别相关的基因对

Yuki Nishimura1, Kimiho Omae1,2, Kento Tominaga1,3

  • 1Department of Integrated Biosciences, Graduate School of Frontier Sciences, the University of Tokyo, Chiba 277-0882, Japan.

NAR genomics and bioinformatics
|December 15, 2025
PubMed
概括

开发了两种新的遗传学方法,即祖先状态调整 (ASA) 和同时进化试验 (SEV),用于在 prokaryotic 基因组中注释 ortholog 组 (OG). 这些方法改善了对未表征的基因的功能推断,特别是在大型元基因组数据集中.

更多相关视频

Mapping Bacterial Functional Networks and Pathways in Escherichia Coli using Synthetic Genetic Arrays14:06

Mapping Bacterial Functional Networks and Pathways in Escherichia Coli using Synthetic Genetic Arrays

Published on: November 12, 2012

46.9K
Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin08:57

Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin

Published on: August 14, 2018

16.4K

相关概念视频

Evolutionary Relationships through Genome Comparisons02:54

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...
6.8K
Gene Evolution - Fast or Slow?02:05

Gene Evolution - Fast or Slow?

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...
7.9K
Gene Evolution - Fast or Slow?02:05

Gene Evolution - Fast or Slow?

3.4K
Genome Size and the Evolution of New Genes03:21

Genome Size and the Evolution of New Genes

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.
8.9K
Genome Size and the Evolution of New Genes03:21

Genome Size and the Evolution of New Genes

3.2K
Genomic DNA in Prokaryotes00:46

Genomic DNA in Prokaryotes

The genome of most prokaryotic organisms consists of double-stranded DNA organized into one circular chromosome in a region of cytoplasm called the nucleoid. The chromosome is tightly wound, or supercoiled, for efficient storage. Prokaryotes also contain other circular pieces of DNA called plasmids. These plasmids are smaller than the chromosome and often carry genes that confer adaptive functions, such as antibiotic resistance.
Genomic Diversity in Bacteria
Although bacterial genomes are much...
48.2K