相关实验视频

Updated: Sep 11, 2025

Novel Sequence Discovery by Subtractive Genomics

Novel Sequence Discovery by Subtractive Genomics

Published on: January 25, 2019

使用完整的塑体组分析阐明Euonymus hamiltonianus复合物的时间分歧和生物地理

Shayan Jamshed¹, Joo-Hwan Kim²

¹Department of Life Sciences, Gachon University, Seongnam, South Korea.

Scientific reports

|August 14, 2025

概括

研究Euonymus L.的塑体澄清了E. hamiltonianus复合体内的进化关系. 这项研究支持Eunymus和E. hamiltonianus复合体在中米欧纪期间的东亚起源.

科学领域:

植物学植物学
进化生物学进化生物学
基因组学就是基因组学.

背景情况:

欧欧尼姆斯L. (Celastraceae) 的进化历史仍未得到充分研究.
在E. hamiltonianus Wall. 内的形态变异. 导致了关于物种地位的分类学辩论.
研究塑体数据可以解决进化的模两可.

研究的目的:

分析E. hamiltonianus复合体的塑体和E.部门内的相关物种. 双眼镜. 双眼镜. 这是一种双眼镜.
阐明这个群体内的进化关系和分类学模两可.
为了确定E. hamiltonianus复杂的起源和多样化时期.

主要方法:

整体塑体组测序和比较分析.
使用最大概率和贝叶斯推理的族系学分析.
使用化石校准进行分子测年.

主要成果:

质体在编码区域和保存结构方面表现出高度相似性.
遗传学分析解决了E. hamiltonianus复合体内的关系,并得到了高度支持.
E. sieboldianus Blume被放置在 E. hamiltonianus 种类之间,这表明了潜在的同义词.
分子年代测定表明,E. hamiltonianus复合体在中米欧时代起源于东亚.

结论:

塑体数据为了解E. hamiltonianus复合体的进化历史提供了一个强大的框架.
E. sieboldianus可能是E. hamiltonianus复合体中的同义词.
这些发现支持了Euonymus属起源于东亚的假设,以及E. hamiltonianus复合体在新生代远东地区的多样化.

关键词:

欧尼姆斯·哈密尔顿的复杂性欧尼姆斯教派. 双眼镜 (Bilocular) 是一种双眼镜.脱节的分离方式东亚东亚东亚东亚东亚北美北美北美北美北美塑性质基因组是什么维卡里安斯 (维卡里安斯) 是一个代表.西亚地区西亚地区

更多相关视频

Robust DNA Isolation and High-throughput Sequencing Library Construction for Herbarium Specimens

Robust DNA Isolation and High-throughput Sequencing Library Construction for Herbarium Specimens

Published on: March 8, 2018

Optimization and Comparative Analysis of Plant Organellar DNA Enrichment Methods Suitable for Next-generation Sequencing

Optimization and Comparative Analysis of Plant Organellar DNA Enrichment Methods Suitable for Next-generation Sequencing

Published on: July 28, 2017

相关概念视频

Evolutionary Relationships through Genome Comparisons

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...

Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes

Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes

The present-day mitochondrial and chloroplast genomes have retained some of the characteristics of their ancestral prokaryotes and also have acquired new attributes during their evolution within eukaryotic cells. Like prokaryotic genomes, mitochondrial and chloroplast genomes neither bind with histone-like proteins nor show complex packaging into chromosome-like structures, as observed in eukaryotes. Unlike mitotic cell divisions observed in eukaryotic cells, mitochondria and chloroplasts...

Gene Duplication and Divergence

Gene Duplication and Divergence

The seminal work of Ohno in 1970 popularized the idea of gene duplication and divergence. DNA sequence comparison studies reveal that a large portion of the genes in bacteria, archaebacteria, and eukaryotes was generated by gene duplication and divergence, indicating its critical role in evolution.
The duplicated copies of the gene are called Paralogs. Paralogs with similar sequences and functions form a gene family. Across several species, a large number of gene families are...

Genetics of Speciation

Genetics of Speciation

Speciation is the evolutionary process resulting in the formation of new, distinct species—groups of reproductively isolated populations.

Gene Evolution - Fast or Slow?

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...

Modern Molecular Taxonomy

Modern Molecular Taxonomy

Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...