"Exploring The Myriapod Body Plan: Expression Patterns Of The Ten Hox Genes In A Centipede".pdf

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Preview of "Exploring the myriapod body plan: expression patterns of the ten Hox genes in a centipede"
🔗 Source: web.archive.org
📊 Size: 903 KB
👤 Author: C. L. Hughes and T. C. Kaufman
⬇️ Downloads: 79

Summary

Over 500 million years ago, arthropods evolved a basic morphology that allowed them to become one of the most populous and diverse phyla on the planet, with over a million species. Their segmented body plan consists of repeated morphological units grouped into tagmata dedicated to specific functions. The process of tagmosis and independent differentiation of individual segments has allowed for great specialization, contributing to the arthropods' success. The Hox genes, which encode the body plan, have been characterized in chelicerates, crustaceans, and insects, and are crucial players in the development of nearly all animals. A study on the centipede Lithobius atkinsoni found that Hox gene expression is dynamic across arthropods, with the centipede's expression patterns being intermediate between those of chelicerates and insects/crustaceans. The study also found two 'extra' Hox genes in the centipede and that Hox expression correlates with tagmatic boundaries, supporting the theory that changes in Hox genes played a major role in the evolution of the arthropod body plan.

Description

Over 500 million years ago, arthropods evolved a basic morphology that allowed them to become one of the most populous and diverse phyla on the planet, with...

Technical Information

  • File Format: PDF
  • File Size: 903 KB
  • Pages: 14
  • Language: EN
  • Author: C. L. Hughes and T. C. Kaufman
  • Total Downloads: 79
  • Last Updated: 7 days ago

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