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Related Concept Videos

Synteny and Evolution02:31

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John H. Renwick first coined the term “synteny” in 1971, which refers to the genes present on the same chromosomes, even if they are not genetically linked. The species with common ancestry tend to show conserved syntenic regions. Therefore, the concept of synteny is nowadays used to describe the evolutionary relationship between species.
Around 80 million years ago, the human and mice lineages diverged from the common ancestor. During the course of evolution, the ancestral...
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Related Experiment Video

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Generation of iPSC-derived Human Brain Organoids to Model Early Neurodevelopmental Disorders
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MCPH1: a window into brain development and evolution.

Jeremy N Pulvers1, Nathalie Journiac2, Yoko Arai3

  • 1Sydney Medical Program, University of Sydney Sydney, Australia.

Frontiers in Cellular Neuroscience
|April 15, 2015
PubMed
Summary
This summary is machine-generated.

MCPH1 is a gene linked to microcephaly and brain size evolution. Research explores its role in neural progenitor cell proliferation and differentiation during development and primate evolution.

Keywords:
MCPH1brain developmentbrain evolutionhumanmicrocephalymouse models

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Area of Science:

  • Neuroscience
  • Evolutionary Biology
  • Genetics

Background:

  • Mammalian cerebral cortex development involves complex mechanisms like progenitor cell proliferation and differentiation.
  • Neural progenitor cell regulation significantly impacts brain size during development and evolution.
  • Genes like ASPM and MCPH1, linked to primary microcephaly, are implicated in brain size evolution due to positive selection in primates.

Purpose of the Study:

  • To review the multifaceted roles of MCPH1 in mammalian brain development and evolution.
  • To explore MCPH1's functions beyond neurodevelopment, including DNA repair and chromosome condensation.
  • To discuss the current understanding and future research directions regarding MCPH1's contribution to brain size regulation.

Main Methods:

  • Literature review synthesizing findings on MCPH1.
  • Analysis of genetic data related to MCPH1 and positive selection in primates.
  • Examination of MCPH1's molecular functions in cellular processes.

Main Results:

  • MCPH1 is causally linked to microcephaly in both mice and humans.
  • MCPH1 exhibits diverse molecular functions, including roles in DNA repair and chromosome condensation.
  • Evidence suggests positive selection of MCPH1 during primate evolution, hinting at its role in brain size increase.

Conclusions:

  • MCPH1 plays a critical role in regulating neural progenitor cell proliferation and differentiation.
  • While MCPH1's precise mechanisms in brain size regulation during development and evolution are still under investigation, it is a key candidate gene.
  • Further research is needed to fully elucidate MCPH1's complex functions and its evolutionary significance.