相关实验视频

Updated: Jun 11, 2025

Hybrid De Novo Genome Assembly for the Generation of Complete Genomes of Urinary Bacteria using Short- and Long-read Sequencing Technologies

Hybrid De Novo Genome Assembly for the Generation of Complete Genomes of Urinary Bacteria using Short- and Long-read Sequencing Technologies

Published on: August 20, 2021

在染色体层面的基因组组合的sacoglossan海Elysia (Risso,1818) 的时间

Lisa Männer^1,2, Tilman Schell^3,4, Julia Spies^3,5

¹LOEWE Centre for Translational Biodiversity Genomics, Senckenberganlage 25, Frankfurt, 60325, Germany. lisa.maenner@senckenberg.de.

|October 7, 2024

概括

这项研究为海Elysia timida提供了高质量的基因组组,克服了对软体动物的测序挑战. 这一突破有助于理解独特的特征,如囊造形和软体动物基因组学.

科学领域:

基因组学就是基因组学.
海洋生物学海洋生物学
进化生物学进化生物学

背景情况:

软体动物是一个多样化的群体,但在测序基因组中仍然不足.
难以标准化基因组数据采集的困难阻碍了软体动物基因组测序.
了解非模型生物体基因组对于洞察进化和特征至关重要.

研究的目的:

为了生成染色体水平的基因组组合和对Elysia timida的注释.
建立一个强大的方法方法来测序"难以测序"的生物体,如软体动物.
为了研究萨科格洛萨独特特征的遗传基础,如囊造形.

主要方法:

优化的长读 (PacBio HiFi) 和染色体构造捕获 (Arima HiC) 库准备.
进行了染色体层次的基因组组装和结构性注释.
使用HPLC-MS/MS分析来确认化合物生产.

主要成果:

与之前的Sacoglossa组件相比,实现了Elysia timida的高质量基因组组件,与N50连接和支架长度相比显著改善.
标注了19904个编码蛋白质的基因,显示出更好的连续性和完整性.
检测到聚基因合成酶的基因,证实了聚氨酸的产生,但没有发现通过水平基因转移的光合作用基因的证据.

结论:

开发的方法方法可以在具有挑战性的生物体中进行高质量的基因组组装,从而促进软体动物基因组测序.
改进的基因组组合和注释将增强对软体动物复杂生物过程的理解,包括功能性囊造形.
这项工作为未来的软体动物和相关类型的基因组研究提供了基础.

关键词:

埃利西亚·蒂米达 (Elysia Timida) 是一个阿里马 HiC 在线观看生物合成生物合成高质量的参考基因组.关键牙整形手术 (Kleptoplasty) 是一个整形手术.类动物 (Mollusca) 是一个类动物.这就是PacBio HiFi.聚基基化物聚基基化物聚基基化物萨科格洛萨 (Sacoglossa) 是一个古老的植物.

更多相关视频

High-throughput Physical Mapping of Chromosomes using Automated in situ Hybridization

High-throughput Physical Mapping of Chromosomes using Automated in situ Hybridization

Published on: June 28, 2012

Transcriptomic Analysis of C. elegans RNA Sequencing Data Through the Tuxedo Suite on the Galaxy Project

Transcriptomic Analysis of C. elegans RNA Sequencing Data Through the Tuxedo Suite on the Galaxy Project

Published on: April 8, 2017

相关概念视频

Genome Annotation and Assembly

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.

Lampbrush Chromosomes

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...