相关实验视频

Updated: Jan 15, 2026

Microsatellite DNA Genotyping and Flow Cytometry Ploidy Analyses of Formalin-fixed Paraffin-embedded Hydatidiform Molar Tissues

Microsatellite DNA Genotyping and Flow Cytometry Ploidy Analyses of Formalin-fixed Paraffin-embedded Hydatidiform Molar Tissues

Published on: October 20, 2019

在Populus中的卫星DNA和Populus xiaohei及其衍生双哈普洛伊德的分子型化

Bo Liu^1,2, Xinyu Wang³, Wenjie Shen^1,2,4

¹Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810008, China.

Plants (Basel, Switzerland)

|October 16, 2025

概括

新的卫星DNA (satDNA) 探测器和分子型鉴定揭示了 (Populus) 和其双倍 (DH) 线的染色体变异,改善了细胞遗传学分析和基因组组装精度.

科学领域:

植物遗传学和基因组学
细胞遗传学细胞遗传学
分子生物学分子生物学

背景情况:

由于小,相似的染色体,在Populus中进行型分析是很困难的.
卫星DNA (satDNA) 在Populus染色体识别和进化研究中未得到充分利用.

研究的目的:

在Populus中识别和描述satDNA.
开发用于Populus染色体分析的新型细胞遗传工具.
为Populus xiaohei构建一个分子型,并研究染色体变异.

主要方法:

在Populus基因组中对satDNA分布的生物信息分析.
使用光现场杂交 (FISH) 的satDNA探针的开发和验证.
对Populus xiaohei及其双倍倍状 (DH) 线的分子型化和比较分析.

主要成果:

鉴定了P. trichocarpa的12个satDNA,并分析了它们的分布.
开发了10个经过验证的satDNA FISH探针,用于P. xiaohei染色体.
构建了P. xiaohei的分子型,揭示了现有的基因组组合中的错误.
与捐赠树相比,检测到DH线的染色体变异.

结论:

新开发的satDNA探针是有效的细胞遗传工具,用于检测Populus中的结构变异.
分子型定型为Populus及其DH植物的染色体变异机制提供了洞察力.
这项研究提高了Populus karyotyping和基因组组装的准确性.

关键词:

在P. xiaoheihei的书中.染色体变异的变化一个双倍的平分体.分子型的分子型.卫星DNADNA是什么意思

更多相关视频

Simple Method for Fluorescence DNA In Situ Hybridization to Squashed Chromosomes

Simple Method for Fluorescence DNA In Situ Hybridization to Squashed Chromosomes

Published on: January 6, 2015

A Noninvasive Hair Sampling Technique to Obtain High Quality DNA from Elusive Small Mammals

A Noninvasive Hair Sampling Technique to Obtain High Quality DNA from Elusive Small Mammals

Published on: March 13, 2011

相关概念视频

Karyotyping

Karyotyping

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...

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...

Polytene Chromosomes

Polytene Chromosomes

Polytene chromosomes are giant interphase chromosomes with several DNA strands placed side by side. They were discovered in the year 1881 by Balbiani in salivary glands, intestine, muscles, malpighian tubules, and hypoderm of larvae Chironomus plumosus. Hence, these are also called "Salivary gland chromosomes." These are found in insects of the order Diptera and Collembola; in certain organs of mammals; and synergids, antipodes of flowering plants. Polytene chromosomes are also...