Results 41 to 50 of about 2,987 (162)

Structural and functional divergence of growth hormone-releasing hormone receptors in early sarcopterygians: lungfish and Xenopus. [PDF]

open access: yesPLoS 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
doaj   +1 more source

Investigation of the activity of transposable elements and genes involved in their silencing in the newt Cynops orientalis, a species with a giant genome

open access: yesScientific Reports, 2021
Caudata is an order of amphibians with great variation in genome size, which can reach enormous dimensions in salamanders. In this work, we analysed the activity of transposable elements (TEs) in the transcriptomes obtained from female and male gonads of
Federica Carducci   +6 more
doaj   +1 more source

Age structure of the Australian lungfish (Neoceratodus forsteri).

open access: yesPLoS ONE, 2019
The Australian lungfish has been studied for more than a century without any knowledge of the longevity of the species. Traditional methods for ageing fish, such as analysis of otolith (ear stone) rings is complicated in that lungfish otoliths differ ...
Stewart J Fallon   +10 more
doaj   +1 more source

Early evolution of the lungfish pectoral fin endoskeleton: evidence from the Middle Devonian (Givetian) Pentlandia macroptera

open access: yesFrontiers in Earth Science, 2014
As the closest living relatives of tetrapods, lungfishes are frequently used as extant models for exploring the fin-to-limb transition. These studies have generally given little consideration to fossil taxa.
Emma eJude   +3 more
doaj   +1 more source

Basal jawed vertebrate phylogenomics using transcriptomic data from Solexa sequencing. [PDF]

open access: yesPLoS ONE, 2012
The traditionally accepted relationships among basal jawed vertebrates have been challenged by some molecular phylogenetic analyses based on mitochondrial sequences.
Ming Chen   +3 more
doaj   +1 more source

Giant lungfish genome elucidates the conquest of land by vertebrates [PDF]

open access: yes, 2021
Lungfishes belong to lobe-fined fish (Sarcopterygii) that, in the Devonian period, ‘conquered’ the land and ultimately gave rise to all land vertebrates, including humans1–3.
Fabrizius, Andrej   +38 more
core   +1 more source

Orthodentine‐osteodentine and osteocytic‐anosteocytic transition inferred from Silurian stem chondrichthyan dermal jawbones with ever‐white teeth overgrown by brown denticles

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background The dentigerous jawbones of a 423‐million‐year‐old stem chondrichthyan (ischnacanthid acanthodian) carry a characteristic combination of multi‐row non‐shedding white teeth with brownish overgrowing denticles. The color distinction makes it a good model for observing the interaction between two odontode lineages, but the nature of ...
Jia‐Cih Kang   +3 more
wiley   +1 more source

Nonlethal age estimation of three threatened fish species using DNA methylation: Australian lungfish, Murray cod and Mary River cod [PDF]

open access: yes, 2021
Age-based demography is fundamental to management of wild fish populations. Age estimates for individuals can determine rates of change in key life-history parameters such as length, maturity, mortality and fecundity.
Benjamin Mayne   +20 more
core   +2 more sources

First dipnoan remains from the Late Triassic of Frick (Switzerland) and the re-evaluation of lungfish palaeobiogeography controls in the Late Triassic [PDF]

open access: yesSwiss Journal of Palaeontology
Lungfishes are common components of the Late Triassic, continental vertebrate assemblages, and yet remain understudied compared to their frequency.
Wojciech Pawlak   +4 more
doaj   +3 more sources

A high latitude Devonian lungfish, from the Famennian of South Africa [PDF]

open access: yesPeerJ, 2019
New fossil lungfish remains comprising two parasphenoids, tooth plates and scales from the Famennian Witpoort Formation of South Africa are described. From the parasphenoid material, which bears similarity to Oervigia and Sagenodus but is nevertheless ...
Robert W. Gess, Alice M. Clement
doaj   +2 more sources

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