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Evolution of the entire arthropod Hox gene set predated the origin and radiation of the onychophoran/arthropod clade

Current BiologyPublished 1 August 1997Open access
Jennifer K. Grenier, Theodore L. Garber, Robert W. Warren, Paul M. Whitington, Sean B. Carroll
Citations188
SJR quartileQ1
SJR score2.71
SNIP1.83
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TL;DR

A complete arthropod Hox gene family existed in the ancestor of the onychophoran/arthropod clade and was found that repression of expression of the Hox target gene Distal-less is unique to the insect lineage.

Abstract

A complete arthropod Hox gene family existed in the ancestor of the onychophoran/arthropod clade. No new Hox genes were therefore required to catalyze the arthropod radiation; instead, arthropod body-plan diversity arose through changes in the regulation of Hox genes and their downstream targets.

Keywords

Agricultural and Biological SciencesBiochemistry, Genetics and Molecular Biology