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Updated: Jun 21, 2025

Comparative in vivo Study of gp96 Adjuvanticity in the Frog Xenopus laevis
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Comparative in vivo Study of gp96 Adjuvanticity in the Frog Xenopus laevis

Published on: September 16, 2010

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两动物的粘附性防御系统的反复演变是由基因表达的平行转移引起的

Shabnam Zaman1, Birgit Lengerer2,3, Joris Van Lindt4

  • 1Ecology, Evolution & Genetics Research Group (bDIV), Biology Department, Vrije Universiteit Brussel, Pleinlaan 2, 1050, Brussels, Belgium.

Nature communications
|July 10, 2024
PubMed
概括

青皮肤粘合剂是通过两个关键蛋白质独立进化而来的. 这些古老的分子被重新利用和调节,展示了现有的生物成分如何在不同的血统中驱动新型适应.

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The evolution of new genes is critical for speciation. Exon recombination, also known as exon shuffling or domain shuffling, is an important means of new gene formation. It is observed across vertebrates, invertebrates, and in some plants such as potatoes and sunflowers. During exon recombination, exons from the same or different genes recombine and produce new exon-intron combinations, which might evolve into new genes. 
Exon shuffling follows “splice frame rules.” Each exon...
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Although the genetic makeup of an organism plays a major role in determining the phenotype, there are also several environmental factors, such as temperature, oxygen availability, presence of mutagens, that can alter an organism’s phenotype.
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Organisms that are well-adapted to their environment are more likely to survive and reproduce. However, natural selection does not lead to perfectly adapted organisms. Several factors constrain natural selection.
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