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Related Concept Videos

Evolutionary Relationships through Genome Comparisons02:54

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...
Sanger Sequencing01:57

Sanger Sequencing

DNA sequencing is a fundamental technique that is routinely used in the biological sciences. This method can be applied to a range of questions at different scales - from the sequencing of a cloned DNA fragment or the study of a mutation in a gene up to whole-genome sequencing. However, despite the widespread use of sequencing today, it was not until 1977 that Fredrick Sanger and his collaborators developed the chain-termination method to decode DNA sequences. It relies on the separation of a...
Next-generation Sequencing03:00

Next-generation Sequencing

The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features.
Maxam-Gilbert Sequencing01:05

Maxam-Gilbert Sequencing

In the same year as the discovery of the Sanger sequencing method, another group of scientists, Allan Maxam and Walter Gilbert, demonstrated their chemical-cleavage method for DNA sequencing. The Maxam-Gilbert method relies on using different chemicals that can cleave the DNA sequence at specific sites, the separation of resulting DNA fragments of variable size using electrophoresis, and deciphering the DNA sequence from the resulting gel bands.
Challenges of the Maxam-Gilbert Method
The...
Modern Molecular Taxonomy01:29

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...
Applications of Molecular Taxonomy01:20

Applications of Molecular Taxonomy

Molecular taxonomy has revolutionized the understanding and classification of bacteria, providing precise insights into their diversity, evolutionary relationships, and ecological roles. By utilizing molecular techniques such as DNA sequencing and fingerprinting, researchers have made significant strides in various fields related to bacterial studies.Resolving Taxonomic AmbiguitiesMolecular taxonomy has been instrumental in distinguishing closely related bacterial species initially thought to...

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Related Experiment Video

Updated: May 11, 2026

Genetic Barcoding with Fluorescent Proteins for Multiplexed Applications
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Barcodes based on nucleic acid sequences: Applications and challenges (Review).

Ying Hong Wei1, Faquan Lin1

  • 1Department of Clinical Laboratory, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530021, P.R. China.

Molecular Medicine Reports
|May 2, 2025
PubMed
Summary
This summary is machine-generated.

Nucleic acid barcode technology offers advanced cell lineage tracing, overcoming limitations of traditional methods. This innovation precisely tracks cell development and heterogeneity across biology, cancer, and stem cell research.

Keywords:
barcodingcellular barcodinghigh‑throughput screeninglineage tracingnucleic acid sequencessingle‑cell transcriptomics

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Area of Science:

  • Cell biology
  • Developmental biology
  • Cancer research
  • Stem cell research

Background:

  • Traditional cell research methods like microscopy have limitations in tracking cell development and heterogeneity.
  • Sensitivity, stability, and barcode drift are key challenges with existing techniques.

Purpose of the Study:

  • To review the principles, applications, and challenges of nucleic acid barcode technology for cell lineage tracing.
  • To highlight the advantages of nucleic acid barcoding over traditional cell research techniques.

Main Methods:

  • Assigning unique nucleic acid barcodes to individual cells.
  • Utilizing these barcodes for accurate identification and tracing of cell origins and differentiation pathways.

Main Results:

  • Nucleic acid barcoding enables precise tracking of cell lineage and differentiation across various developmental stages.
  • This technology illuminates dynamic processes in tissue development, organogenesis, and cancer evolution.
  • It provides novel insights into stem cell self-renewal and differentiation mechanisms.

Conclusions:

  • Nucleic acid barcode technology represents a significant advancement in cell lineage tracing.
  • It offers enhanced capabilities for studying cellular heterogeneity and dynamics in diverse biological contexts.
  • Further examination of its applications and challenges is warranted.