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Related Concept Videos

Speciation Rates01:07

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Overview
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Speciation describes the formation of one or more new species from one or sometimes multiple original species. The resulting species are discrete from the parent species, and barriers to reproduction will typically exist. There are two primary mechanisms, speciation with and without geographic isolation—allopatric and sympatric speciation, respectively.
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Related Experiment Video

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In Situ Hybridization Techniques for Paraffin-Embedded Adult Coral Samples
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Speciation and development.

Asher D Cutter1

  • 1Department of Ecology & Evolutionary Biology, University of Toronto, Toronto, Ontario, Canada.

Evolution & Development
|August 7, 2023
PubMed
Summary
This summary is machine-generated.

This review explores how genetic changes and developmental processes interact to drive speciation. Understanding these links helps demystify the origin of species and reproductive isolation.

Keywords:
Dobzhansky-Muller incompatibilityevo-devogenetic networksreproductive isolationrules of speciation

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Area of Science:

  • Evolutionary Biology
  • Developmental Biology
  • Genetics

Background:

  • The origin of species is a fundamental challenge in evolutionary biology.
  • Genomic divergence can lead to hybrid inviability and sterility, key aspects of speciation.
  • Divergent developmental programs contribute to reproductive isolation.

Purpose of the Study:

  • To integrate microevolutionary genetic concepts with organismal development principles.
  • To establish explicit links between population genetics and developmental mechanisms in speciation.
  • To provide a unified view of speciation that connects process and mechanism.

Main Methods:

  • Review of microevolutionary concepts and developmental biology principles.
  • Integration of population genetic processes with molecular and developmental mechanisms.
  • Analysis of genetic mechanisms including gene regulation, protein interactions, and epigenetics.

Main Results:

  • Genomic divergence and altered developmental programs are crucial for reproductive isolation.
  • Genetic mechanisms like cis/trans regulation, gene networks, and epigenetics underpin developmental evolution.
  • Population genetic and molecular evolutionary processes are foundational to developmental evolution.

Conclusions:

  • Linking genetic change with developmental mechanisms offers a unified perspective on speciation.
  • Understanding developmental evolution is key to demystifying the origin of species.
  • Explicit connections between population genetics and development illuminate macroevolutionary patterns.