相关实验视频

Updated: Jun 26, 2025

Isolation of Giant Lampbrush Chromosomes from Living Oocytes of Frogs and Salamanders
10:07

Isolation of Giant Lampbrush Chromosomes from Living Oocytes of Frogs and Salamanders

Published on: December 5, 2016

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50种沙兰 (Caudata, Amphibia) 的基因组序列草案

R Alexander Pyron1,2, Stacy Pirro3, Taylor Hains4,5

  • 1Department of Biological Sciences, George Washington University.

Biodiversity genomes
|May 10, 2024
PubMed
概括

研究人员测序了50种鱼物种的部分基因组,显著扩大了Urodela.的可用基因组数据. 这项工作涵盖了广泛的基因组大小和进化史,有助于未来研究的进化.

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Generation of Chimeric Axolotls with Mutant Haploid Limbs Through Embryonic Grafting07:17

Generation of Chimeric Axolotls with Mutant Haploid Limbs Through Embryonic Grafting

Published on: January 29, 2020

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Ultralow Input Genome Sequencing Library Preparation from a Single Tardigrade Specimen10:28

Ultralow Input Genome Sequencing Library Preparation from a Single Tardigrade Specimen

Published on: July 15, 2018

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相关概念视频

Lampbrush Chromosomes01:51

Lampbrush Chromosomes

In 1882, Flemming observed lampbrush chromosomes (LBC) in salamander eggs. Later in 1892, Rückert observed LBCs in shark egg cells and coined the term "lampbrush chromosomes" because they looked like brushes used to clean kerosene lamps.
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops...
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Multi-species Conserved Sequences02:51

Multi-species Conserved Sequences

Next-generation sequencing technologies have created large genomic databases of a variety of animals and plants. Ever since the human genome project was completed, scientists studied the genome of primates, mammals, and other phylogenetically distant living beings. Such large-scale  studies have provided new insights into the evolutionary relationship between organisms.
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
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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...
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Genome Annotation and Assembly03:36

Genome Annotation and Assembly

The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.
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