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相关概念视频

Genomics02:02

Genomics

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Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
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Evolutionary Relationships through Genome Comparisons02:54

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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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Synthetic Biology02:55

Synthetic Biology

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Synthetic biology is an interdisciplinary science that involves using principles from disciplines such as engineering, molecular biology, cell biology, and systems biology. It involves remodeling existing organisms from nature or constructing completely new synthetic organisms for applications such as protein or enzyme production, bioremediation, value-added macromolecule production, and the addition of desirable traits to crops, to name a few.
Golden rice
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Genome Annotation and Assembly03:36

Genome Annotation and Assembly

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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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Gene Duplication and Divergence02:37

Gene Duplication and Divergence

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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...
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Genomic DNA in Eukaryotes00:58

Genomic DNA in Eukaryotes

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Eukaryotes have large genomes compared to prokaryotes. To fit their genomes into a cell, eukaryotic DNA is packaged extraordinarily tightly inside the nucleus. To achieve this, DNA is tightly wound around proteins called histones, which are packaged into nucleosomes that are joined by linker DNA and coil into chromatin fibers. Additional fibrous proteins further compact the chromatin, which is recognizable as chromosomes during certain phases of cell division.
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Author Spotlight: Impact of Intergenic Interactions on Disease-Identifying Dark Biomarkers
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深基因:基于泛基因组图形转换器的基因组学高效基础模型

Xiang Zhang, Mingjie Yang, Xunhang Yin

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    此摘要是机器生成的。

    DeepGene是一个新的模型,通过捕捉遗传多样性和提高效率来解决DNA序列分析的挑战. 它擅长解释各种序列长度,优于现有的模型.

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    科学领域:

    • 基因组学就是基因组学.
    • 生物信息学是一种生物信息学.
    • 计算生物学 计算生物学

    背景情况:

    • 预先训练有素的模型,如DNABERT-2和核酸转换器,已经进行了先进的DNA序列分析.
    • 现有的模型在遗传语言多样性,模型效率和长度推断方面扎.

    研究的目的:

    • 介绍DeepGene,这是一种旨在克服当前DNA序列分析局限性的新型模型.
    • 增强对遗传变异的捕获,以可扩展的成本提高性能.

    主要方法:

    • 利用泛基因组和微图表征来捕捉遗传语言的多样性.
    • 采用旋转位置嵌入,以提高长度外推能力.
    • 在基因组理解评估基准的28项任务中对绩效进行评估.

    主要成果:

    • 在基因组理解评估中,DeepGene获得了总体最佳分数.
    • 在处理不同长度的DNA序列方面表现出卓越的效率.
    • 在紧的模型尺寸和处理速度方面,其性能优于其他最先进的模型.

    结论:

    • 在分析多样化的遗传语言和处理可变序列长度方面,DeepGene提供了重大进展.
    • 该模型为大规模遗传基础模型提供了更有效和可扩展的解决方案.
    • 深基因代表了基因组研究的新基准,增强了我们解码DNA序列的能力.