Lamprey-like gills in a gnathostome-related Devonian jawless vertebrate

Nature
Philippe JanvierMarius Arsenault

Abstract

So far, the Palaeozoic fossil jawless vertebrates have not provided any direct evidence for the organization of the gills, apart from vague impressions--supposedly left by gill filaments--on the bony surface of the gill chamber in certain armoured forms or 'ostracoderms' (for example, osteostracans and heterostracans). The latter are currently regarded as more closely related to the living jawed vertebrates (crown gnathostomes) than to the living jawless vertebrates (hagfish and lampreys, or cyclostomes). Here we report the first direct evidence for the position of the gill filaments--possibly supported by gill rays--enclosed by gill pouches in a 370-million year (Myr)-old jawless vertebrate, Endeiolepis, from the Late Devonian fossil fish site of Miguasha, Quebec, Canada. This extinct jawless fish has much the same gill organization as living lampreys, although it possesses an unusually large number of gill pouches--a condition unlike that in any extant vertebrates and that raises questions about gill development. Endeiolepis is currently regarded as a close relative of anaspids, a group of 410-430-Myr-old 'ostracoderms'. Assuming that current vertebrate phylogeny is correct, this discovery demonstrates that pouches enclosing ...Continue Reading

References

Jul 6, 2000·Biological Reviews of the Cambridge Philosophical Society·P C DonoghueR J Aldridge
Jan 3, 2001·BioEssays : News and Reviews in Molecular, Cellular and Developmental Biology·A Graham, A Smith
Jun 7, 2002·Nature·Philippe Janvier, Marius Arsenault
Sep 28, 2002·Proceedings. Biological Sciences·Hou Xian-guangFeng Xiang-hong
Aug 9, 2003·Journal of Morphology·Jon Mallatt, Jun-yuan Chen
May 17, 2006·Trends in Ecology & Evolution·Philip C J Donoghue, Mark A Purnell

❮ Previous
Next ❯

Citations

Nov 21, 2007·Nature Reviews. Neuroscience·Trevor D LambEdward N Pugh
Mar 27, 2009·Proceedings of the National Academy of Sciences of the United States of America·J Andrew GillisNeil H Shubin
Feb 14, 2009·PLoS Biology·Gareth J FraserJ Todd Streelman
Mar 10, 2009·Zoological Science·Kinya Yasui, Takao Kaji
Mar 10, 2009·Zoological Science·Philippe Janvier
Jun 12, 2014·Nature·Simon Conway Morris, Jean-Bernard Caron
Apr 30, 2011·Respiratory Physiology & Neurobiology·Jean ChampagnatGilles Fortin
Jun 23, 2007·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Anthony Graham
Nov 3, 2009·Genesis : the Journal of Genetics and Development·J Andrew Gillis, Neil H Shubin
Apr 23, 2015·Biological Reviews of the Cambridge Philosophical Society·Tetsuto Miyashita
Mar 24, 2016·Zoological Letters·Victoria ShoneAnthony Graham
Jun 11, 2010·Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution·Zerina Johanson
Feb 25, 2014·Differentiation; Research in Biological Diversity·Stephen A Green, Marianne E Bronner
Jun 23, 2015·ELife·Sabrina AsteritiLorenzo Cangiano
Jan 14, 2011·Current Opinion in Immunology·Ellen Hsu
Oct 27, 2006·Nature·Philippe Janvier
Oct 27, 2006·Nature·Robert W GessBruce S Rubidge
Jul 25, 2021·International Journal of Molecular Sciences·Jaroslav FabikOndrej Machon

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
Anthony Graham
© 2022 Meta ULC. All rights reserved