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Related Concept Videos

The Evidence for Evolution02:55

The Evidence for Evolution

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Genetic variations accumulating within populations over generations give rise to biological evolution. Evolutionary changes can result in the formation of novel varieties and entire new species. These changes are responsible for the diverse forms of life inhabiting the planet. The evidence for evolution suggests that all living organisms descended from common ancestors.
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Convergent Evolution01:54

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The endosymbiont theory is the most widely accepted theory of eukaryotic evolution; however, its progression is still somewhat debated. According to the nucleus-first hypothesis, the ancestral prokaryote first evolved a membrane to enclose DNA and form the nucleus. Conversely, the mitochondria-first hypothesis suggests that the nucleus was formed after endosymbiosis of mitochondria.
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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.
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Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
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Related Experiment Video

Updated: Jan 20, 2026

Author Spotlight: Understanding Microbe Adaptation Using Innovative Techniques for Exploring Thermophilic Evolution
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Evolution, Microbes, and Changing Ocean Conditions.

Sinéad Collins1, Philip W Boyd2, Martina A Doblin3

  • 1Institute of Evolutionary Biology, University of Edinburgh, Edinburgh EH9 3FL, United Kingdom;

Annual Review of Marine Science
|August 28, 2019
PubMed
Summary
This summary is machine-generated.

Marine microbial studies can benefit from experimental evolution to understand how microbes adapt to global change. This review highlights evolutionary tools for studying trait changes, environmental variability, and population limits.

Keywords:
carbon dioxidedriver emergenceenvironmental fluctuationevolutionary rescueexperimental evolutionglobal changemarine microbiologymultiple stressorsplasticity

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Area of Science:

  • Marine biology
  • Evolutionary biology
  • Microbial ecology

Background:

  • Experimental evolution and theory are underutilized in marine microbial studies.
  • These fields have largely developed in isolation.
  • Marine microbial studies can advance understanding of evolution.

Purpose of the Study:

  • Review evolutionary tools for ocean global change biology.
  • Link plastic and evolutionary trait changes.
  • Examine environmental variability, multiple drivers, and population tolerance limits.

Main Methods:

  • Review of existing literature and evolutionary approaches.
  • Highlighting data from marine studies suitable for evolutionary analysis.
  • Discussing marine model systems for evolutionary research.

Main Results:

  • Identified four key areas in ocean global change biology where evolutionary tools are applicable.
  • Highlighted potential for marine model systems to advance evolutionary understanding.
  • Discussed the emerging field of marine microbial experimental evolution.

Conclusions:

  • Experimental evolution offers powerful tools for marine microbial global change biology.
  • A framework linking environmental quality and population traits can guide evolutionary research.
  • Integrating evolutionary approaches is crucial for understanding marine microbial adaptation.