Spam and the evolution of the fly's eye

Osorio, Daniel (2007) Spam and the evolution of the fly's eye. BioEssays, 29 (2). pp. 111-115. ISSN 0265-9247

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The open rhabdoms of the fly's eye enhance absolute sensitivity but to avoid compromising spatial acuity they require precise optical geometry and neural connections.1 This neural superposition system evolved from the ancestral insect eye, which has fused rhabdoms. A recent paper by Zelhof and co‐workers2 shows that the Drosophila gene spacemaker (spam) is necessary for development of open rhabdoms, and suggests that mutants revert to an ancestral state. Here I outline how open rhabdoms and neural superposition may have evolved via nocturnal intermediates, and discuss the implications for the role of spam in insect phylogeny.

Item Type: Article
Keywords: fly, insect, rhabdom, spam, evolution, eye
Schools and Departments: School of Life Sciences > Biology and Environmental Science
Subjects: Q Science > QL Zoology
Depositing User: Daniel ColacoOsorio
Date Deposited: 16 Jul 2008
Last Modified: 02 Jul 2019 15:03
Google Scholar:7 Citations

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