Olfactory systems

Common design, uncommon origins?

Research output: Contribution to journalArticle

160 Citations (Scopus)

Abstract

In both vertebrates and invertebrates, odorant molecules reach the dendrites of olfactory receptor cells through an aqueous medium, which reflects the evolutionary origin of these systems in a marine environment. Important recent advances, however, have demonstrated striking interphyletic differences between the structure of vertebrate and invertebrate olfactory receptor proteins, as well as the organization of the genes encoding them. While these disparities support independent origins for odor-processing systems in craniates and protostomes (and even between the nasal and vomeronasal systems of craniates), olfactory neuropils share close neuroanatomical and physiological characters. Whereas there is a case to be made for homology among members of the two great protostome clades (the ecdysozoans and lophotrochozoans), the position of the craniates remains ambiguous.

Original languageEnglish (US)
Pages (from-to)634-639
Number of pages6
JournalCurrent Opinion in Neurobiology
Volume9
Issue number5
DOIs
StatePublished - Oct 1 1999

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Invertebrates
Vertebrates
Odorant Receptors
Vomeronasal Organ
Olfactory Receptor Neurons
Neuropil
Dendrites
Nose
Genes
Odorants

ASJC Scopus subject areas

  • Neuroscience(all)

Cite this

Olfactory systems : Common design, uncommon origins? / Strausfeld, Nicholas J; Hildebrand, John G.

In: Current Opinion in Neurobiology, Vol. 9, No. 5, 01.10.1999, p. 634-639.

Research output: Contribution to journalArticle

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