Results 21 to 30 of about 1,771 (171)

Shifts in type 2 vomeronasal receptor expression during postnatal development in the lungfish olfactory organ. [PDF]

J Anat
Lungfish possess a lamellar OE and a primitive VNO called as a recess epithelium (RecE). Among the lungfish V2Rs expressed in both the lamellar OE and the RecE in small individuals, some became restricted to the RecE in large individuals. These results suggest functional separation between the lamellar OE and the RecE is still incomplete in juveniles ...
Nakamuta S, Zhang Z, Nikaido M, Yokoyama T, Yamamoto Y, Nakamuta N.   +5 more
europepmc   +2 more sources

Cloning of nine glucocorticoid receptor isoforms from the slender African lungfish (Protopterus dolloi).

PLoS ONE, 2022
We wanted to clone the glucocorticoid receptor (GR) from slender African lungfish (Protopterus dolloi) for comparison to the P. dolloi mineralocorticoid receptor (MR), which we had cloned and were characterizing, as well as for comparison to the GRs from
Yoshinao Katsu, Shin Oana, Xiaozhi Lin, Susumu Hyodo, Laurent Bianchetti, Michael E Baker   +5 more
doaj   +2 more sources

Phylogenomics Based on Transcriptome Data Provides Evidence for the Internal Phylogenetic Relationships and Potential Terrestrial Evolutionary Genes of Lungfish

Frontiers in Marine Science, 2021
The evolutionary relationships of lungfish can provide crucial information on the transition from Sarcopterygii to tetrapods. Phylogenomics is necessary to explore accurate internal phylogenetic relationships among all lungfish species. In the context of
Linlin Zhao, Shouqiang Wang, Fangrui Lou, Tianxiang Gao, Zhiqiang Han   +4 more
doaj   +1 more source

Two Paralogues as They Like It: Conserved and Divergent Evolution of Vertebrate Gcm Genes. [PDF]

Evol Dev
Comparative overview of Gcm1 and Gcm2 paralogues across vertebrates. Gcm2 is conserved in pharyngeal‐derived organs across gnathostomes, whereas Gcm1 shows lineage‐specific diversification from an ancestral pharyngeal context, including secondary loss in teleosts, distinct expression in bichir gills and skin, and broader expression in mammals ...
Shono T, Tatsumi N, Miyake T, Kuraku S, Okabe M.   +4 more
europepmc   +2 more sources

Living animals for comparison in studies of Mesozoic fossils. [PDF]

Research & Knowledge, 2017
Lungfish are timeless, starting in the Devonian and still found today. Unfortunately this does not mean that biologists and palaeontologists agree about the functional anatomies of dipnoans.
Anne Kemp
doaj   +1 more source

Type 1 vomeronasal receptor expression in juvenile and adult lungfish olfactory organ

Zoological Letters, 2023
Lungfish are the most closely related fish to tetrapods. The olfactory organ of lungfish contains lamellae and abundant recesses at the base of lamellae.
Shoko Nakamuta, Yoshio Yamamoto, Masao Miyazaki, Atsuhiro Sakuma, Masato Nikaido, Nobuaki Nakamuta   +5 more
doaj   +1 more source

“Living fossils” and the mosaic evolution of characters

Frontiers in Ecology and Evolution, 2023
The modern discussion of living fossils turns mostly on the persistence of archaic, or ancestral, traits in extant organisms. Prime examples mentioned by Darwin already—who also coined the term “living fossil”—include the platypus and the extant ...
Olivier Rieppel
doaj   +1 more source

A new method for reconstructing brain morphology: applying the brain-neurocranial spatial relationship in an extant lungfish to a fossil endocast [PDF]

Royal Society Open Science, 2016
Lungfish first appeared in the geological record over 410 million years ago and are the closest living group of fish to the tetrapods. Palaeoneurological investigations into the group show that unlike numerous other fishes—but more similar to those in ...
Alice M. Clement, Robin Strand, Johan Nysjö, John A. Long, Per E. Ahlberg   +4 more
doaj   +1 more source

Olfactory Projections in the Lepidosirenid Lungfishes [PDF]

Brain, Behavior and Evolution, 2011
Olfactory nerve and olfactory bulb projections in lepidosirenid lungfishes were experimentally determined with neural tracers. Unilateral injections of DiI into the olfactory nerve labeled the accessory and main olfactory bulbs as well as fibers of the anterior root of the terminal nerve, which terminates extensively in cell groups of the medial ...
R Glenn, Northcutt, Elke, Rink
openaire   +5 more sources

Brain - Endocast Relationship in the Australian Lungfish, Neoceratodus forsteri, Elucidated from Tomographic Data (Sarcopterygii: Dipnoi). [PDF]

PLoS ONE, 2015
Although the brains of the three extant lungfish genera have been previously described, the spatial relationship between the brain and the neurocranium has never before been fully described nor quantified.
Alice M Clement, Johan Nysjö, Robin Strand, Per E Ahlberg   +3 more
doaj   +1 more source