Structural and functional divergence of growth hormone-releasing hormone receptors in early sarcopterygians: lungfish and Xenopus. [PDF]
PLoS ONE, 2013 The evolutionary trajectories of growth hormone-releasing hormone (GHRH) receptor remain enigmatic since the discovery of physiologically functional GHRH-GHRH receptor (GHRHR) in non-mammalian vertebrates in 2007.
Janice K V Tam +2 more
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Aestivation and hypoxia-related events share common silent neuron trafficking processes [PDF]
BMC Neuroscience, 2012 Background The availability of oxygen is a limiting factor for neuronal survival since low levels account not only for the impairment of physiological activities such as sleep-wake cycle, but above all for ischemic-like neurodegenerative disorders. In an
Giusi Giuseppina +5 more
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The rapid evolution of lungfish durophagy
Nature Communications, 2022 It is unclear how Lungfishes evolved durophagy, the consumption of hard prey, despite being the longest lineage of vertebrates with this feeding mechanism. Here, the authors describe exceptionally preserved fossils of Youngolepis from the Early Devonian,
Xindong Cui +4 more
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Mapping the Space of Genomic Signatures [PDF]
, 2014 We propose a computational method to measure and visualize interrelationships among any number of DNA sequences allowing, for example, the examination of hundreds or thousands of complete mitochondrial genomes.
Bryans, Nathaniel +6 more
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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 +4 more
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“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
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Lungfish axial muscle function and the vertebrate water to land transition.
PLoS ONE, 2014 The role of axial form and function during the vertebrate water to land transition is poorly understood, in part because patterns of axial movement lack morphological correlates.
Angela M Horner, Bruce C Jayne
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Histology of juvenile skin of Lepidosiren paradoxa Fitzinger, 1837 (Sarcopterygii, Dipnoi) [PDF]
Anais da Academia Brasileira de Ciências, 2019 : The skin of three juvenile Lepidosiren paradoxa specimens was examined. The epidermis was composed of a polystratified epithelium resting on a basement membrane, including mucus-secreting cells, and a cuticle of mucopolysaccharides on the surface.
LUIS ALBERTO ROMANO +3 more
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Morphometric analysis of lungfish endocasts elucidates early dipnoan palaeoneurological evolution
eLife, 2022 The lobe-finned fish, lungfish (Dipnoi, Sarcoptergii), have persisted for ~400 million years from the Devonian Period to present day. The evolution of their dermal skull and dentition is relatively well understood, but this is not the case for the ...
Alice M Clement +6 more
doaj +1 more source
The missing anatomy of the living coelacanth, Latimeria chalumnae (Smith, 1939) [PDF]
Vertebrate Zoology, 2022 Anatomical features that have not been previously described in Latimeria were sought in histological section series, tissue-stained microCT scans, MRI scans, and synchrotron scan series.
Peter Johnston
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