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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...

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Related Experiment Video

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Profiling DNA Replication Timing Using Zebrafish as an In Vivo Model System
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BirthSeq, a new method to isolate and analyze dated cells in different vertebrates.

Eneritz Rueda-Alaña1,2, Marco Grillo3, Enrique Vázquez4

  • 1Achucarro Basque Center for Neuroscience, Scientific Park of the University of the Basque Country (UPV/EHU), 48940, Leioa, Spain.

Development (Cambridge, England)
|June 10, 2024
PubMed
Summary

Researchers developed BirthSeq, a novel method to isolate cells by their birth date. This technique aids in understanding how developmental time influences cell fate and gene expression in embryonic development.

Keywords:
In situ sequencingBirdsFACS sortingNeocortexNeurogenesisPalliumProgenitor cellsReptilesSingle-cell RNA sequencing

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Area of Science:

  • Developmental Biology
  • Genomics
  • Cell Biology

Background:

  • Embryonic development involves complex cell production and diversification over time.
  • Developmental time is critical for neuronal subtype identity in the central nervous system.
  • Existing tools are limited for studying how time dictates genetic instructions for cell fate.

Purpose of the Study:

  • Introduce BirthSeq, a new method for isolating and analyzing cells based on their birth date.
  • Enable in vivo cell labeling, isolation, and high-throughput analysis.
  • Provide a versatile tool for developmental biology research across species.

Main Methods:

  • BirthSeq method calibration across mouse, chick, and gecko developmental organs.
  • Application of BirthSeq for single-cell RNA sequencing in mice.
  • Utilization of BirthSeq with spatially resolved transcriptomics in chicks.

Main Results:

  • Demonstrated BirthSeq's efficacy in multiple vertebrate species.
  • Enabled temporal analysis of cell populations during development.
  • Facilitated detailed study of gene expression linked to cell birth timing.

Conclusions:

  • BirthSeq is a versatile tool for studying temporal cell dynamics in various tissues and organisms.
  • The method aids in understanding the genetic basis of cell fate determination during development.
  • BirthSeq advances developmental biology by linking cellular identity to temporal cues.