科尔维-A进化的轨迹表明,它最初与科夫斯港附近的考拉生殖系基因组融合
Tianxiong Yu1, Michaela B J Blyton2, Birgit S Koppetsch1
1University of Massachusetts Chan Medical School.
Research square
|January 7, 2025
概括
考拉复原病毒-A (KoRV-A) 的内源化可能始于新南威尔士州科夫斯港附近. 这种马逆转录病毒传播,多样化和重组,地理障碍影响其在考拉群体中的分布.
科学领域:
- 基因组学就是基因组学.
- 进化生物学 进化生物学
- 病毒学 病毒学
背景情况:
- 考拉复原病毒-A (KoRV-A) 是一种在野生考拉中传播的马复原病毒.
- KoRV-A的传播发生在横向和垂直,影响了考拉的基因组多样性.
- 之前的估计将KoRV-A内源化定位在过去5万年内,但起源和传播模式尚不清楚.
研究的目的:
- 为了分析整个考拉的地理范围内的生殖系KORV-A插入.
- 为了阐明KoRV-A.的进化轨迹和多样化.
- 确定影响KORV-A传播和重组的地理因素.
主要方法:
- 405只野生考拉的全基因组测序.
- 对生殖线逆转录病毒插入模式的分析.
- KoRV-A变体和重组事件的地理映射.
主要成果:
- KoRV-A内源化可能始于新南威尔士州科夫斯港附近.
- 特定的KoRV-A亚型的出现和流行.
- KoRV-A与PhER的再组合,产生明显的北方和南方变异.
- 确定悉尼北部的地理障碍影响向南传播.
结论:
- 建议为KORV-A提供一个全面的进化途径.
- 在科夫斯港附近的初始内源化.
- 多元化和地理障碍塑造了KORV-A的分布和影响.
相关概念视频
Transgenic Organisms
30.9K
Overview
30.9K
Hybridoma Technology
14.1K
Hybridoma technology is used for the large-scale production of monoclonal antibodies. Monoclonal antibodies bind to only a single antigenic determinant or epitope. Such antibodies are used in research, diagnostics, and disease therapy. The hybridoma technology established in 1975 by Georges Köhler and Cesar Milstein was awarded the Nobel Prize in Medicine in 1984 for revolutionizing research and therapy.
Hybridoma Selection
Commonly used fusion techniques — electroporation,...
Hybridoma Selection
Commonly used fusion techniques — electroporation,...
14.1K
Animal Mitochondrial Genetics
7.4K
Among all the organelles in an animal cell, only mitochondria have their own independent genomes. Animal mitochondrial DNA is a double-stranded, closed-circular molecule with around 20,000 base pairs. Mitochondrial DNA is unique in that one of its two strands, the heavy, or H, -strand is guanine rich, whereas the complementary strand is cytosine rich and called the light, or L, -strand. Compared to nuclear DNA, mitochondrial DNA has a very low percentage of non-coding regions and is marked by...
7.4K
Complementary DNA
29.3K
Overview
29.3K
Homologous Recombination
4.4K
4.4K
Synteny and Evolution
3.2K
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...
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
3.2K


