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相关概念视频

Genome Annotation and Assembly03:36

Genome Annotation and Assembly

21.1K
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.
21.1K
Genomics02:02

Genomics

40.9K
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...
40.9K
Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes02:16

Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes

17.1K
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...
17.1K
Genome Size and the Evolution of New Genes03:21

Genome Size and the Evolution of New Genes

9.2K
While every living organism has a genome of some kind (be it RNA, or DNA), there is considerable variation in the sizes of these blueprints. One major factor that impacts genome size is whether the organism is prokaryotic or eukaryotic. In prokaryotes, the genome contains little to no non-coding sequence, such that genes are tightly clustered in groups or operons sequentially along the chromosome. Conversely, the genes in eukaryotes are punctuated by long stretches of non-coding sequence.
9.2K
Plant Hormones01:56

Plant Hormones

27.7K
Plant hormones—or phytohormones—are chemical molecules that modulate one or more physiological processes of a plant. In animals, hormones are often produced in specific glands and circulated via the circulatory system. However, plants lack hormone-producing glands.
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Tonicity in Plants00:53

Tonicity in Plants

60.0K
Tonicity describes the capacity of a cell to lose or gain water. It depends on the quantity of solute that does not penetrate the membrane. Tonicity delimits the magnitude and direction of osmosis and results in three possible scenarios that alter the volume of a cell: hypertonicity, hypotonicity, and isotonicity. Due to differences in structure and physiology, tonicity of plant cells is different from that of animal cells in some scenarios.
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相关实验视频

Updated: Feb 14, 2026

Annotation of Plant Gene Function via Combined Genomics, Metabolomics and Informatics
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Annotation of Plant Gene Function via Combined Genomics, Metabolomics and Informatics

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植物基因组组合和注释

Todd P Michael1

  • 1The Plant Molecular and Cellular Laboratory, Salk Institute for Biological Studies, La Jolla, CA, 92037, USA; Department of Cell and Developmental Biology, School of Biological Sciences, University of California, San Diego, La Jolla, CA, 92093, USA; Center for Marine Biotechnology and Biomedicine, Scripps Institute of Oceanography, University of California, San Diego, La Jolla, CA, 92093, USA; Department of Science and Conservation, San Diego Botanical Garden, Encinitas, CA, 92024, USA.

Current opinion in plant biology
|February 12, 2026
PubMed
概括

植物基因组组装现在是染色体规模和哈普洛型解决,即使是多倍体. 焦点转向使用人工智能和多组学来改进基因发现和作物开发的先进基因组注释.

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mirMachine: A One-Stop Shop for Plant miRNA Annotation
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Hybrid De Novo Genome Assembly for the Generation of Complete Genomes of Urinary Bacteria using Short- and Long-read Sequencing Technologies
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相关实验视频

Last Updated: Feb 14, 2026

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mirMachine: A One-Stop Shop for Plant miRNA Annotation
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Hybrid De Novo Genome Assembly for the Generation of Complete Genomes of Urinary Bacteria using Short- and Long-read Sequencing Technologies
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科学领域:

  • 植物基因组学 植物基因组学
  • 生物信息学是一种生物信息学.
  • 计算生物学是一种计算生物学.

背景情况:

  • 长读测序和组装算法的进步使得完整的植物基因组组装成为可能.
  • 植物基因组学的瓶已经从基因组组装转向了准确的注释和解释.
  • 目前的注释依赖于ab initio方法和基于证据的框架,整合了各种omics数据.

研究的目的:

  • 以突出植物基因组生物学的转型时代,由新技术驱动.
  • 讨论植物基因组注释中的挑战和机遇.
  • 探索人工智能和多组学在植物基因组学中的未来方向和潜在影响.

主要方法:

  • 利用长读测序技术进行染色体规模的基因组组合.
  • 采用改进的组装算法和脚手架策略.
  • 整合RNA测序,染色质可访问性,甲基化和3D基因组数据以实现基于证据的注释.
  • 利用人工智能 (AI) 驱动的基因预测器和大规模的 ортология网络.

主要成果:

  • 无间隙的可行性,哈普洛型解析的基因组组件,包括多倍体物种.
  • 基于证据的基因组注释框架的快速发展.
  • 通过人工智能驱动的预测器重新定义ab initio基因的发现.
  • 通过大规模的骨科网络改进了功能推断.

结论:

  • 下一个前沿涉及到将注释扩展到监管和结构元素,使用单单元和多元组.
  • 整合人工智能,多omics和大型语言模型将标准化和自动化注释工作流.
  • 这些创新有望加速植物生物学发现,保护和作物改进.