Analysis of nubbin expression patterns in insects

Evolution & Development
Hua Li, A Popadic

Abstract

Previous studies have shown that the gene nubbin (nub) exhibits large differences in expression patterns between major groups of arthropods. This led us to hypothesize that nub may have evolved roles that are unique to particular arthropod lineages. However, in insects, nub has been studied only in Drosophila. To further explore its role in insects in general, we analyzed nub expression patterns in three hemimetabolous insect groups: zygentomans (Thermobia domestica, firebrat), dyctiopterans (Periplaneta americana, cockroach), and hemipterans (Oncopeltus fasciatus, milkweed bug). We discovered three major findings. First, observed nub patterns in the ventral central nervous system ectoderm represent a synapomorphy (shared derived feature) that is not present in other arthropods. Furthermore, each of the analyzed insects exhibits a species-specific nub expression in the central nervous system. Second, recruitment of nub for a role in leg segmentation occurred early during insect evolution. Subsequently, in some insect lineages (cockroaches and flies), this original role was expanded to include joints between all the leg segments. Third, the nub expression in the head region shows a coordinated change in association with particul...Continue Reading

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Citations

Sep 13, 2007·PloS One·Najmus MahfoozAleksandar Popadić
Aug 11, 2010·Arthropod Structure & Development·Matthias PechmannNikola-Michael Prpic
Dec 17, 2015·Proceedings of the National Academy of Sciences of the United States of America·Victor MedvedAleksandar Popadić
Sep 22, 2005·Evolution & Development·Aleksandar Popadić
Nov 22, 2008·Evolution & Development·Steven HrycajAleksandar Popadić
Jun 29, 2011·Developmental Biology·Nataliya TurchynAleksandar Popadić
Oct 24, 2015·Evolution & Development·Prashant P SharmaWard C Wheeler
Mar 18, 2016·Genetics·Jin LiuAleksandar Popadić
Mar 3, 2012·G3 : Genes - Genomes - Genetics·David R AngeliniElizabeth L Jockusch
Feb 12, 2020·Proceedings of the National Academy of Sciences of the United States of America·Lisa Hanna, Aleksandar Popadić
Aug 5, 2020·Nature Ecology & Evolution·Courtney M Clark-Hachtel, Yoshinori Tomoyasu
Apr 22, 2021·Genome Biology and Evolution·Sarthok Rasique RahmanHeather M Hines

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