ArticleDevelopment genes and evolution2013
The fate of the onychophoran antenna.
Article in Development genes and evolution, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 28 citations in OpenAlex.
- The velvet worm brain unveils homologies and evolutionary novelties across panarthropods.BMC biology · 2022Article
- The nervous and visual systems of onychophorans and tardigrades: learning about arthropod evolution from their closest relatives.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2017Review
- Article
- Fine morphology of frontal filaments in nauplii of cirriped crustaceans.Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections · 2016Article
- Article
- Kodymirus and the case for convergence of raptorial appendages in Cambrian arthropods.Die Naturwissenschaften · 2013Article
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Recent gene expression data suggest that the region on which the onychophoran antenna is situated corresponds to the anteriormost, apparently appendage-less region of the arthropod head. The fate of the onychophoran antenna (or any appendage-like precursor), also called the primary antenna, has been discussed intensively, and there are conflicting suggestions that this anteriormost non-segmental appendage gave rise either to the arthropod labrum or, alternatively, to the so-called frontal filaments found in certain crustaceans. Our data on early axogenesis in anostracan crustaceans show that even in the earliest embryos, before the antennula and antennal nerves are developed, the circumoral anlagen of the brain display very prominent nerves which run into the frontal filament organ (also known as the cavity receptor organ). This situation resembles the development of the antennal nerves in onychophorans, which leads us to conclude that the frontal filaments are indeed homologous to the primary antenna. Frontal filaments also appear to be more common in crustaceans than previously thought, removing the need for a complicated scenario of transformation from a primary antenna into the labrum.
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